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Get the best concrete testing equipment available in today’s market, with both metal and plastic concrete test cylinder molds that make concrete curing and strength testing easier.
Among the many other important concrete curing and fresh concrete field tests, like slump and cure testing, cylinder concrete testing is an essential part of any construction project, especially those involving the creation of a foundational structure. They can shape and hold concrete specimens used for structural support in buildings.
Our plastic test cylinder molds for concrete are in stock and normally ship the same day as your order, so why not have a browse? You can also learn more about a concrete cylinder mold and its usage below.
Concrete cylinder test molds are containers used for casting and forming cylindrical concrete specimens in an environment. These molds can be made of plastic or steel and are designed to maintain the dimensions and shape of a concrete cylinder during the concrete curing process.
The purpose of concrete cylinder test molds is to create standardized concrete samples for compression testing and quality. The cylinders are cast from fresh concrete to cure and harden within an enclosed area.
These test molds come in dimensions to accommodate concrete project specifications and testing requirements. A common size includes 4 x 8 inches (102 x 203 mm), but you can also get 6 x 12 inches (152 x 305 mm) depending on the height and diameter of your specimen.
At Certified MTP, we offer metal and plastic concrete cylinders, but we also carry quality graduated tamping rods and a concrete cylinder domed lid to maintain a consistent shape of a cylindrical mold.
Selecting the correct cylinder concrete test mold ensures the accuracy, reliability, and durability of your concrete project. You can preserve the shape of each concrete piece to ensure consistency and safety when building a structural support system. All of our plastic test cylinder molds are made from a non-absorbent, single-piece injected plastic mold for a consistent shape and dimensional integrity.
You can choose between plastic or steel for the material composition. Plastic molds are lightweight and durable, but they also have corrosion resistance, making them suitable for damaging environments such as corrosive concrete substances. On the other hand, steel molds have greater strength and accuracy during the concrete curing and compression testing process.
Before choosing a cylinder test mold from our plastic and steel range, consider the mold quality, conformance to standards, and code compliance. Below are some factors that ensure accurate and seamless results.
Dimensional accuracy - Our high-quality test cylinder molds are suitable for a wide variety of testing laboratories and concrete projects because they meet established guidelines for curing and protecting specimens.
Regulatory compliance - Concrete test cylinders should always meet ASTM standards including c470, C 31, and C 39. This compliance demonstrates your adherence to the best practices in material testing, legal obligations, and safety procedures and standards.
Quality and assurance: The concrete testing process can identify potential issues or discrepancies in the mold before you pour concrete.
There are guidelines we recommend you follow before using our concrete test cylinder molds. Mold inspection through visual inspections ensures there is no damage or signs of wear that could interfere with a concrete test. For mold preparation, use suitable release agents or a lubricant to facilitate easy de-molding. With our plastic molds, covering them with moist curing sheets is essential for maintaining temperate conditions during the curing process of your concrete test cylinder molds.
Following the right maintenance practices will also keep your concrete test cylinder molds up to scratch. Regular cleaning and inspection can increase mold longevity, but they will also minimize the risk of errors in your concrete project.
Our concrete accessories range from cleaning supplies to concrete restoration for the best results.
Calibrating cylinder molds is a process that ensures quality and dimensional accuracy. You can use calibrated measuring equipment, such as calipers and micrometers, to test the diameter and height of each mold. Following a calibration procedure can help you measure concrete strength and dimensions that fall within an accepted range.
Non-destructive testing can also assess mold integrity for your test cylinders for concrete. This form of testing includes visual inspections for deformities, dimensional metrology for ensuring precise measurements, and tap testing to indicate weak areas or damage within the concrete mold. With these methods, you will gain the best results for your structure.
Lastly, complying with relevant ASTM (American Society for Testing and Materials) standards is essential in materials testing and construction. Here at Certified MTP, we provide products that are approved by safety regulations and can give you confidence in any form of concrete testing.
Our concrete test cylinder molds for concrete testing are part of our extensive selection of concrete testing equipment. We keep our plastic and metal concrete test cylinder molds well stocked. You will also need a stripping tool to remove the single-piece test cylinder mold from the test cylinder.
Concrete test molds play a significant role in material testing because they assess the concrete’s compressive strength. When it comes to concrete testing equipment for ASTM C470 requirements, you can trust Certified MTP to deliver high-quality concrete test cylinder molds at competitive prices.
Each of our concrete test cylinder molds is non-absorbent, climate-resistant, and comes with an unlimited shelf life. In terms of the manufacturing quality of each cylinder mold, the testing products and solutions we sell are constructed of the highest quality materials, weather resistant, dimensional tolerance, and injected plastic unit.
Our cylinder molds for concrete testing are part of our extensive selection of concrete testing equipment. We keep our plastic and metal concrete test cylinder molds well stocked. You will also need a stripping tool to remove the single piece test cylinder molds form the test cylinder, The stripping tool either has a T-Handle or a screw-driver handle.
It is important to consult ASTM regulations to determine the precise cylinder tests that should be performed to ensure the quality and safety of the foundations and structures you wish to construct.
If you want to prioritize quality, conformity, and easy maintenance for reliable concrete testing, choose from our range of cylinder test molds.
We recommend the Concrete Cylinder Molds 4x8 (36 Per Case, Grey) for 4 x 8 cylinder compressive strength testing
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Overview of Test Cylinders for Concrete Compression Strength Testing
Concrete test cylinder molds are pivotal in evaluating the compression strength of concrete, serving as a standard method for assessing the material's quality and compliance with design specifications. The use of cylinders in concrete strength testing provides engineers, contractors, and testing laboratories with critical data used to validate the structural integrity of concrete structures. This comprehensive overview delves into the preparation, testing, and significance of concrete test cylinder molds in the construction industry.
Creation and Use of Concrete Cylinder Molds
Test Cylinder Molds and Sampling
Concrete test cylinders are typically formed using standard cylinder molds made of steel or plastic. These molds come in various sizes, but commonly used dimensions are 6 inches in diameter and 12 inches in height. The concrete mix is poured into these molds immediately after mixing, ensuring that the sample represents the actual batch used in construction. To achieve accurate results, the molds must be clean, undamaged, and coated with a non-reactive release agent to prevent sticking.
Molding and Curing Process
Once filled, the cylinder molds are vibrated or rod-tapped to consolidate the concrete and eliminate air pockets, ensuring a dense and homogeneous sample. The top of the mold is then struck off with a straight edge to create a smooth and flat surface. After initial setting, the cylinders are capped or sealed to prevent moisture loss and generally left to harden at the job site under similar conditions that the structural concrete will experience. This approach helps in assessing the concrete's strength as it would exist in the actual structure, providing more relevant data.
Field cured cylinders, as opposed to laboratory-cured ones, better represent the in-situ conditions of the concrete. These cylinders are cured in a controlled environment that replicates the field conditions to ensure the test results accurately reflect the concrete's strength in its final location.
Testing for Compressive Strength
Transportation and Lab Testing
After curing, cylinders are transported to a testing laboratory where they undergo compressive strength testing. The testing process typically occurs at set intervals, such as 7, 14, and 28 days after casting, to measure the concrete's strength gain over time. The cylinders are placed in a compression-testing machine, and pressure is applied until the cylinder fails or fractures. This failure point indicates the maximum compressive strength of the concrete.
Standard Test Method
The procedure for testing the compressive strength of cylinders is standardized, commonly adhering to ASTM International standards. These standards specify the equipment calibration, loading rates, and cylinder handling techniques to ensure accuracy and reproducibility of the test results. Adherence to these specifications is crucial for obtaining reliable and actionable data.
Importance and Implications of Test Results
Quality Control and Specification Compliance
The primary use of cylinder testing is for quality control and verification that the concrete used in a construction project meets the strength requirements set out in the design specifications. Strength test results are used for the acceptance or rejection of concrete batches, making it a critical component in construction management.
Failure Analysis
In cases where test cylinders indicate that the concrete does not meet specified strengths, investigations are conducted to determine the cause of the low strength. This might involve reviewing the mix design, the quality of materials (like cement or aggregates), or the curing conditions. Identifying and correcting such issues is vital to prevent structural failures.
Resource Management
Concrete cylinder testing is an inexpensive yet effective method for monitoring the quality of concrete. Over decades, it has proven to be a valuable resource for the construction industry, enabling the optimization of material properties and ensuring the safe, economical construction of concrete structures.
Challenges and Considerations
Variability in Results
While concrete cylinder testing is generally reliable, variability in test results can occur due to non-standard procedures, improper sample handling, or environmental factors. Technicians must be adequately trained, and all testing conditions must strictly follow specified methods to minimize these discrepancies.
Reuse and Environmental Considerations
Traditionally, cylinder molds were single-use, but recent advancements have led to the development of reusable molds, which help reduce waste and environmental impact. The choice of mold—disposable or reusable—can depend on project specifications, cost considerations, and environmental policies.
Conclusion
Concrete test cylinders remain a cornerstone in the assessment of concrete's compressive strength. By using these cylinders, the construction industry can ensure that concrete mixes achieve necessary strength specifications, thereby supporting the durability and safety of built structures. Through standard test methods and rigorous quality controls, concrete cylinder testing helps maintain the integrity and reliability of concrete as one of the most widely used construction materials worldwide.
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