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30Aug
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How Does a Concrete Plant Work? Step-by-Step Production Process

The importance of concrete in the modern construction world is undeniable. This material, which forms the backbone of every structure from bridges to dams, from residences to skyscrapers, is actually the product of an extremely precise production process. So, how are tons of concrete produced in a short time at large job sites? The answer lies in concrete plants. In this article, we will examine in full detail how a concrete plant works, what components it consists of, and why the production process is so critical.

What is a Concrete Plant and What Does it Do?

A concrete plant is an industrial facility that weighs and blends sand, gravel, cement, water, and various additives as needed in specific proportions, then mixes them to produce ready-to-use concrete. These systems, also known as "ready-mix concrete facilities," produce both much faster and at standard quality compared to manual mixing methods at the job site.The biggest problem in concrete production done manually or with small concrete mixers is the inconsistency of mix ratios. This inconsistency directly affects the load-bearing capacity, setting time, and durability of the structure. Concrete plants, on the other hand, completely transfer this process to automation, guaranteeing the same quality in every batch.

Basic Components of a Concrete Plant

To understand a concrete plant, it is first necessary to know what parts it consists of. Each unit of the system takes on a critical role connected to each other in the production chain.Aggregate Bunker and Weighing Belt: Coarse and fine aggregates such as sand and gravel are loaded into bunkers by loaders. These compartments that hold each aggregate separately allow the materials to be weighed without mixing. The weighing belt ensures that each type of aggregate is fed into the system at the weight specified in the formula.Cement Silo and Screw Conveyor: Cement is stored in vertical silos protected against moisture absorption. From here it is transferred to the weighing system via screw conveyors (helixes). In some facilities, binding materials such as fly ash or slag are also kept in separate silos and fed in the same way.Additive Tank: Chemical additives such as plasticizers, retarders, or accelerators are stored in separate tanks and added to the system with millimetric precision according to the production formula. These additives are used to adjust the workability, setting time, and strength of the concrete.Water Weighing System: Water is perhaps the most critical component in terms of concrete consistency. If you add too much water, the concrete becomes diluted and its strength decreases; if you add too little, the mix is insufficient. For this reason, water is measured in a fixed weighing tank before being fed into the system. In winter months, heating the water or adding ice may be necessary; modern plants can manage this process automatically as well.Mixer: The central point where all materials meet is the mixer. In the twin shaft mixers most commonly used in the industry, paddles on two shafts rotating in opposite directions move the materials both horizontally and vertically, achieving a homogeneous mixture in a short time. A mixing time of generally 30 to 60 seconds is sufficient.Control Room and Automation System: The brain managing all these processes is the plant control room. Operators define concrete formulas through the software here, adjust weighing quantities, and initiate production. In advanced systems, production data is recorded in real time; how much material was used in which batch can be monitored and reported.

How is Concrete Production Carried Out Step by Step?

After getting to know all the components of the plant, let us examine the production process in order.Formula Definition: Each concrete class (such as C20, C25, C30) has its own unique mix ratio. These ratios are determined according to the technical specifications of the work to be done, weather conditions, and place of use. The software in the control room defines this formula to the system.Aggregate Weighing: The control system calls different types of aggregates to the weighing belt according to the formula — such as fine sand, coarse sand, 8-16 mm gravel, 16-32 mm stone. Each is weighed separately and automatically stopped when the specified values are reached.Weighing of Binding Materials: Cement and, if present, fly ash or slag are taken into the powder weighing system via screw conveyors. This weighing proceeds simultaneously with aggregate weighing, thereby increasing production speed.Measuring Water and Additives: The water weighing tank fills up, and additives are measured by dosage pumps. If a deviation is detected in any component, the system gives an alarm and does not proceed to the next step.Loading into Mixer and Mixing: All weighed materials are discharged into the mixer drum. After the dry materials go through a few seconds of pre-mixing, water is added. After an intensive mixing period of approximately 40-60 seconds, homogeneous, fresh concrete is obtained.Discharge and Transportation: The ready concrete is discharged into a transit mixer (concrete mixer) truck by opening the lower door of the mixer. The truck continues to rotate to maintain the workability of the concrete as it reaches the job site. For short distances, fixed conveyors or pumps can also be used.

Types of Concrete Plants: Which is Used Where?

Concrete plants are not all the same type; different models are preferred depending on the size of the project, its duration, and logistics conditions.Stationary Concrete Plants: Preferred for long-term and high-capacity projects. They can be set up once and operated in the same place for years. With production capacities ranging from 60 to 200 m³ per hour, they are indispensable for large ready-mix concrete facilities.Mobile Concrete Plants: Frequently used at different job sites thanks to ease of installation and dismantling. Preferred especially in infrastructure projects where the location constantly changes, such as roads, bridges, and dams. Transportation costs are reduced thanks to ease of transport.Compact Concrete Plants: This plant type, which incorporates both stationary and mobile features, is ideal for use in narrow spaces. Installation time is short and cost is relatively low. It offers a practical solution for small and medium-scale projects.

Factors Affecting Concrete Quality

No matter how good the concrete plant is, there are other factors that determine quality. Aggregate quality, the class of cement used, the water/cement ratio, and mixing time are the most critical parameters. The lower the water/cement ratio, the more durable the concrete; however, workability also decreases. Striking this balance correctly is the work of experienced concrete technology.In addition, the pouring, compaction, and curing of concrete also directly affect final quality. No matter how good the concrete coming out of the plant is, the expected strength cannot be achieved if incorrect application is made at the job site.A concrete plant is the invisible but indispensable engine of modern construction. This chain extending from the weighing of raw materials to their meeting in the mixer, and from there to reaching the job site, offers an unrivaled production power in terms of both speed and quality when operated correctly. Whether stationary, mobile, or compact, each plant type provides superior efficiency in its own area of use.In the construction sector, quality and durability start from the foundation. That foundation largely begins with a formula entered in the control room and precision weighing systems operating in under a second. Understanding this meticulous working logic of the concrete plant is a conscious step taken for both correct equipment selection and healthier structures.
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30May
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A Powerful Export from Krismak to Russia: 60 m³/h Concrete Plant Delivery with APV Limited

Krismak continues to consolidate its position as a reliable supplier worldwide with the engineering expertise and international project experience it has demonstrated in concrete plant manufacturing since its founding. One of the most recent export projects carried out in this direction was the stationary concrete plant with a capacity of 60 m³/h delivered to Russia-based APV Limited.Russia's vast geography and dynamic construction sector increase the demand for high-performance and reliable concrete production equipment with each passing year. APV Limited decided to cooperate with Krismak following the supplier evaluation process it carried out to meet this need. This preference is a tangible indicator of Krismak's technical competence and after-sales support capacity in the international arena.The 60 m³/h capacity concrete plant delivered is fully equipped to meet APV Limited's site conditions with its high mixture homogeneity, low energy consumption, and long-lasting mechanical structure. The equipment was manufactured within the quality control standards applied in Krismak's production processes and was successfully put through the required technical tests before being made ready for shipment.With this project, Krismak has once again strengthened its presence in the Russian market and added a new link to its export network reaching more than 50 countries. The company operates on the principle that the solutions it offers are based not only on machine supply, but on a long-term partnership approach, treating every project as a process aligned with the customer's business objectives.This cooperation established with APV Limited is expected to mark the beginning of a long-term commercial relationship between the two companies.
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30May
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A Strategic Export from Krismak to Georgia: 45 m³/h Concrete Plant Delivery with Ashtrom Contracting Georgia LLC

Krismak once again proves its determination in offering the high-capacity and reliable production equipment needed by the construction sector to international markets with each new export project. One of the significant deliveries carried out in this scope is the stationary concrete plant project with a capacity of 45 m³/h belonging to Georgia-based Ashtrom Contracting Georgia LLC.Georgia has become one of the most dynamic construction markets in the region in recent years with its accelerating infrastructure investments and urban transformation projects. This growth process directly increases the need for quality and uninterrupted concrete production. Ashtrom Contracting Georgia LLC decided to cooperate with Krismak in its search for a reliable solution partner capable of meeting this need. This preference is a clear reflection of Krismak's technical reputation and project management experience in the Caucasus region.The 45 m³/h capacity concrete plant delivered was manufactured at a level that will fully meet the site requirements of Ashtrom Contracting Georgia LLC with its precise weighing systems, durable mechanical structure, and operational efficiency-focused design. The equipment was put through the quality assurance processes within Krismak and made ready for shipment in compliance with international standards.Through this project, Krismak continues to strengthen its position in the Georgian market while expanding its global export network covering more than 50 countries. The company regards every delivery not merely as a sales transaction, but as the foundation of a long-term and mutually trust-based partnership.This cooperation established with Ashtrom Contracting Georgia LLC is expected to lay the groundwork for new projects in the coming period.
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30May
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A Powerful Export from Krismak to Algeria: 60 m³/h Concrete Plant Delivery with FEKA Construction Industry and Trade Inc.

Krismak continues to transfer the deep engineering expertise and global project experience it has gained over the years in concrete plant manufacturing to international markets. One of the recent export projects brought to life within this framework is the delivery of a stationary concrete plant with a capacity of 60 m³/h to be deployed in Algeria under the Turkish-origin contracting company FEKA Construction Industry and Trade Inc.Algeria, one of the largest economies in North Africa, has achieved a notable growth momentum in the construction sector in recent years with the comprehensive infrastructure and housing projects brought to life. This development noticeably increases the demand for high-capacity and site condition-resistant concrete production equipment. FEKA Construction Industry and Trade Inc. preferred to cooperate with Krismak following its supplier evaluation process carried out to meet its project requirements in Algeria. This decision once again demonstrates the reliability of the solutions Krismak offers to the Turkish contracting sector within the scope of both domestic and international projects.The 60 m³/h capacity concrete plant delivered was manufactured to deliver superior performance against the challenging site conditions in Algeria with its high mixture quality, energy-efficient operating system, and long-lasting mechanical components. The equipment was prepared for shipment in compliance with international standards after passing through Krismak's meticulous quality control processes.With this delivery, Krismak consolidates its export presence on the African continent while adding a new dimension to its global supply network covering more than 50 countries. The company regards every project as part of a long-term partnership relationship with its customer-focused approach and after-sales technical support philosophy.
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30May
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What is a Mobile Concrete Plant? What Advantages Does It Bring to Job Sites?

What is a Mobile Concrete Plant? What Advantages Does It Bring to Job Sites?

In the construction world, what makes or breaks a project often comes down to a single decision point: where, how, and when will the concrete come from?For years, the answer to this question was always the same; an agreement would be made with a ready-mix concrete company, mixer trucks would enter the site, the pour would be done, and they would leave. It sounds simple, doesn't it? But in practice, things never work that way. Traffic, remote job site locations, hours racing against the concrete's setting time, and delivery schedules that never hold up... These are the headaches every experienced site manager knows well.This is exactly where the mobile concrete plant comes into play. It doesn't care about the geography where the job site is located or the project's timeline; it produces concrete at the desired quality, at the desired time, right where it is set up. In this article, we will examine in depth what a mobile concrete plant is, how it works, and the concrete advantages it provides to job sites.

What is a Mobile Concrete Plant?

By its technical definition, a mobile concrete plant is a concrete production facility where aggregate bunkers, weighing belts, cement storage, water measurement system, mixer, and automation cabinet are all integrated onto a single portable chassis, capable of being transported by road and starting production in a short time.But let's make this definition a bit more concrete. Imagine you are building a dam. The nearest ready-mix concrete facility is 80 kilometers away. The road in between is both mountainous and rough. The time remaining to use the concrete before the mixer truck arrives is dangerously narrowing. On top of that, you need to start the pour at seven in the morning but the truck can only arrive at noon. In this scenario, the project either gets delayed or quality is compromised.A mobile plant eliminates all the variables in this equation. The facility is set up directly on the job site. Concrete is produced at exactly the moment it is needed and with the correct mix ratios. There is no transportation, no setting loss, no logistics stress.

How Does a Mobile Concrete Plant Work?

The operation of the system is not fundamentally different from a fixed facility; the difference is that everything is fitted into a portable structure.The production process proceeds with the following steps: sand, gravel, and similar aggregates are loaded into the bunkers. Weighing belts precisely measure each material at the weight specified in the formula. Cement is transferred from silos to the mixer chamber. Water and any chemical additives are incorporated into the system through dosage pumps. All materials are processed in the mixer until a homogeneous mixture is obtained. Finally, the ready-mix concrete is conveyed to the transport truck or pumps.This entire process is managed by PLC-based automation systems. The operator selects the formula from the touchscreen, and the system handles the rest. Data for each pour is recorded and can be presented as a quality certificate if needed. In some modern systems, remote access and real-time monitoring are also possible.Production capacities vary by model. Mini mobile plants produce 30 cubic meters per hour while large twin-chassis models can reach up to 120-150 cubic meters. These figures offer the flexibility to meet needs across a wide range from a medium-scale housing project to a large dam construction.

Advantages It Provides to Job Sites

Saving Time, Not Compromising on Schedule

Although the "time = money" cliché in the construction sector may seem exaggerated, it accurately reflects reality. A one-day delay sometimes means penalty clauses, sometimes employee costs, and sometimes additional losses from weather conditions.A mobile plant producing within the job site completely eliminates dependence on external suppliers. If work starts at six in the morning, concrete is ready at exactly that time. If a pour is to be done on the night shift, the plant continues to operate. This flexibility gives teams using work schedules a significant time advantage over their competitors.

Reduction of Logistics Costs

Purchasing ready-mix concrete from outside can be more expensive than the price tag appears. Transportation cost per truck, fuel surcharges, waiting fees, remote site additional pricing... When all of these are added up and calculated at year end, how sensible an investment in-site production is becomes apparent.A company that owns or rents a mobile plant eliminates the majority of these items. Raw material costs are kept under control, and production efficiency is maximized.

Being a Solution in Remote and Hard-to-Reach Locations

Considering the infrastructure projects ongoing throughout Turkey roads in mountain passes, village bridges, hydroelectric power plant projects, security structures in border regions many job sites are set up at points where it is physically impossible for ready-mix concrete trucks to reach.In such locations, the solution is only one thing: producing your own concrete. A mobile plant can reach everywhere a truck can pass. It is set up there and produces there.

Full Control Over Concrete Quality

When ready-mix concrete is purchased, the supervisory authority over the production process belongs entirely to the supplier. Mix ratios, water quantity, additives... It is nearly impossible to inspect these before delivery.When a job site operates its own plant, however, everything is transparent. The automation system guarantees that the determined formula is applied to the gram. Quality control samples are taken directly at the production point. Strength classes such as C25, C30, or C40 are consistently achieved. This control mechanism is of critical importance especially in structures such as bridges, tunnels, or runways that require high engineering tolerances.

The Investment Retaining Value After the Project

A fixed facility stays where it is built. If a factory is not going to be operated there after the project is finished, this facility either remains idle or is dismantled at heavy demolition costs.The story of the mobile plant is exactly the opposite. When the project is completed, the facility is removed and transported to the next job site. Even if the investment has been amortized during the project period, the machine continues to carry significant value in the second-hand market. Since the rental option is also on the table, small and medium-sized companies can use this technology without major capital expenditure.

Environmental Advantage: Less Traffic, Less Emissions

Dozens of mixer trucks entering urban traffic both disrupts city flow and increases carbon emissions. Especially in urban transformation or construction projects in city centers, this situation can lead to friction with local authorities.With in-site production, truck trips are minimized. This is an important gain both environmentally and in terms of neighborhood relations.

For Which Projects is it the Right Choice?

Every project has different conditions. Mobile plants stand out most in the following scenarios:In road and highway construction, the production need that moves along the route does not require fixed installation; the plant moves together with the project. In dam and hydroelectric power plant construction, geographical isolation makes in-site production mandatory. In airport and runway construction, the need for large-volume and homogeneous concrete is best met with on-site production. In temporary housing projects, the rental model allows companies to benefit from the technology without making large investments. In post-disaster rapid construction processes, the installation speed of the mobile plant acts as a lifesaver.

The Job Site Now Carries Its Factory With It

The mobile concrete plant is a concrete reflection of the paradigm shift taking place in the construction sector. It is no longer necessary to be tied to a fixed facility, long installation times, or external suppliers for concrete production.This technology rebalances the equation of time, cost, quality, and flexibility in favor of the job site. Especially considering Turkey's rapidly growing infrastructure investments and urban transformation projects, it is inevitable that interest in mobile concrete plants will increase even further in the coming years.As a project manager or construction company owner, there are three fundamental questions you need to consider when evaluating this technology: How long is your project and how much concrete does it need? Is the location suitable for external supply? Does the current budget support an investment or rental model? When you can give clear answers to these three questions, the right decision will emerge on its own.Pouring concrete can always be made possible; but pouring the right concrete, in the right place, at the right time that is a matter of choice and planning.
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30May
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What Are the Factors to Consider When Choosing a Concrete Plant?

What Are the Factors to Consider When Choosing a Concrete Plant?

A concrete plant purchase decision is actually a much more complex process than it appears. We are talking about an investment of hundreds of thousands of dollars; moreover, you are also taking into account that this investment will form the backbone of your project over the next ten, perhaps twenty years. So why do people often just look at the price and sign when making such a critical decision?This is one of the biggest mistakes observed in the industry for years. Looking at the numbers in the catalog and saying "this capacity is enough" is like buying a vehicle by only liking the color and not looking at the trunk. But the right concrete plant selection depends on the size of your project, its location, working pace, and even the technical competence of the team you will employ. In this article, we examine the factors you really need to consider when buying a concrete plant, together with practical examples and industry experience.

Do Not Calculate Capacity Based Only on Today

Production capacity is one of the most frequently asked questions in concrete plant selection. How many cubic meters of concrete per hour needs to be produced is directly dependent on the scale of the project and the work schedule. However, the classic mistake made here is this: People make purchase decisions based on the needs of today's project; yet even if 60 m³/hour seems sufficient today, this capacity may create a serious bottleneck for you in a new project you take on two years from now.So how should it be calculated? First, determine your average daily concrete demand. Then add maximum intensity periods and possible downtime to this. As a general rule, choosing a plant with a capacity of twenty to thirty percent above the need you have calculated will protect you in unexpected situations. While the 30–60 m³/hour range is often a reasonable starting point for small-scale contractors, capacities of 120 m³/hour and above become inevitable in large infrastructure projects.

Stationary or Mobile? The Answer to This Question Determines the Fate of the Project

The choice between these two options is more of a strategic investment preference than a purely technical decision. Stationary concrete plants are ideal for long-term projects requiring high production capacity and continuity. Factories, ready-mix concrete facilities, or large infrastructure projects carried out in city centers fall into this category. Fixed installations generally offer higher efficiency because everything operates in an optimized, permanent order.Mobile plants offer a different kind of flexibility. Especially for companies working at more than one job site, being able to take the plant from one location and have it operating in another city within a few days provides a great cost advantage. Portability also significantly reduces rental or transportation costs. Compact plants are positioned somewhere between these two options; their ability to operate effectively even in narrow job site areas has become a feature that makes them increasingly popular.Ask yourself the following questions when deciding: How many months will my project last? Am I planning to work at other locations as well? How much space can I allocate for plant installation?

Material Quality Used: The Difference That Cannot Be Seen but Affects Everything

Most people who wonder why the price difference is so large when comparing concrete plant offers will actually find the answer to this question in the quality of the steel construction, welding workmanship, and surface coatings. A plant manufactured with cheap materials may seem to operate without issues in the first year. But in humid climates or under intensive use, wear increases rapidly; maintenance costs begin to cumulatively exceed the initial investment price.A few technical details to pay attention to are: the thickness and hardness values of the steel used in load-bearing constructions; the quality of weld seams; whether wear-resistant material is used on surfaces that come into contact with aggregates; paint and coating standards. A CE certificate is an indicator of a certain quality assurance at the manufacturer; however, it is also necessary to look at the scope under which this certificate was obtained.

Automation Systems: Not Just a Luxury, Now a Necessity

Ten years ago, automation was a feature of only high-capacity plants. Today, digital control systems have become standard even in small-scale plants. The main reason for this is the devastating effect of human-induced errors on concrete quality. A small deviation in the water-cement ratio can significantly reduce the compressive strength of concrete; this can lead to consequences that threaten structural safety.A good automation system offers features such as precise weighing control for each mix, formula memory, production reporting, and remote access. In some modern systems, the concrete quality at the job site can be monitored in real time, and possible deviations are instantly communicated to the operator as warnings. These features both reduce costs and raise the standard of the concrete produced.When making a purchase, it is also worth asking whether the automation software is of domestic or foreign origin. Domestic software does not create a language barrier during the technical support process and is generally more flexible in terms of customization.

After-Sales Support: The Real Test Begins After Delivery

You bought a concrete plant, it was installed, and it started operating. Right in the middle of a critical project, a malfunction occurred in the mixer shaft. How the manufacturer will treat you at this point is actually a criterion you should have tested from the very beginning.There are a few practical ways to measure after-sales service quality in the industry. First, look at the company's spare parts stock status; do they keep frequently used parts on hand? How quickly can the technical service team reach the site? Is the phone support line active outside of working hours? All of these should be clearly asked during the sales interview and verified by speaking with reference customers if possible.In addition to these, whether the manufacturer offers a training program that includes you in the system is also important. Operators working consciously with the system reduces both the frequency of breakdowns and the extent of possible damage.

Environmental and Energy Efficiency: No Longer Can Be Ignored

In recent years, environmental regulations in the construction sector have been tightening progressively. Dust collection systems, concrete recycling units, and water-saving mixing technologies have begun to become mandatory standards in many countries. Environmental legislation in Turkey is also being updated in this direction.When selecting a plant, check whether dust filtration and environmental protection equipment are present. A concrete recycling unit reduces costs by allowing waste concrete to be reused, and also helps you fulfill your environmental responsibility. In addition, energy consumption is a factor that should not be overlooked; motors with high energy efficiency can provide significant savings in the long term.

The Right Choice Pays for Itself Over the Years

Concrete plant selection is a decision made once and lived with for years. Price does not always have to be the determining factor; on the contrary, a plant that appears cheap but has high maintenance costs, spare parts that are difficult to access, and insufficient technical support will end up costing much more in the long run.When you evaluate capacity, type, material quality, automation system, after-sales support, and environmental compliance criteria together, reaching the right choice becomes much easier. Even if you do not have enough time to test all of these one by one, at least try to see reference projects on-site, talk to existing users, and request technical specifications comparatively from more than one supplier.Experienced players in the industry know this well: an investment in a quality plant pays for itself many times over through the timely and standards-compliant delivery of projects.
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