Concrete Sieve: Fineness Test for Cement, #325
Fineness Test Sieves
Cement Sieve Analysis: Fineness Test with #325 Sieve
Hydraulic Cement Sieve Analysis: Fineness Test with #325 Sieve
2” Diameter Cement Test #325 Sieve is a one piece brass frame with No. 325 stainless steel wire cloth. This sieve is used for aggregate testing in various fields, asphalt, soil testing. 2in (50.8mm) dia. frame is 3in (76.2mm) deep from rim to cloth, can be verified to ASTM E11 Calibration or Inspection Grade. Using sieves with different sizes is important for accurate aggregate testing, to get precise measurement and distribution analysis. User calibration required with No. 114 NIST Portland Cement. Customers who buy this Fineness Test Sieve also buy other models, so make sure to offer all.
Features:
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Verifiable to Calibration or Inspection Grade
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One-piece frame
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Brass
Product* Dimensions*2 x 3in (50.8 x 76.2mm) DxH
Meets:
AASHTO M 92, AASHTO T 192, ASTM E11, ASTM C430, ASTM D1514, ASTM T 98M/T 98, ASTM C143. For accurate field testing, use the Steel Concrete Slump Cone designed to assess the consistency and workability of fresh concrete.
Cement Fineness and Why it Matters
Fineness is a key parameter to determine the quality and performance of cement and is influenced by the properties of aggregates. The properties of aggregates must match the requirements of the end product to get the desired physical and static properties of the concrete.
Sample Preparation
Sample Preparation is a critical step in cement finenesstest. To get accurate and reliable results, the sample must be representative of the entire cement batch and free from lumps or agglomerates. Take enough cement from the batch and mix it well to get uniformity. This step is important as it maintains the sample represents the overall cement composition. The impact of fines on the sample preparation is significant, as they influence the material properties and compactability. It is also important to report the fines fraction according to technical standards to get the structural qualities of the finished product.
When preparing the cement sample, consider using cement wet sieves, especially those with stainless steel mesh for wet environments.
Then dry the sample to a constant weight to remove any moisture that can affect the test results. Moisture can affect the weight and behavior of cement particles during the test and give wrong readings. Once dry, grind the sample to a fine powder using mortar and pestle or grinding mill. This grinding keeps the cement particles are of even size which is necessary for consistent and accurate fineness test. For related testing equipment that maintains accurate results, explore our aggregate water test equipment.
Sieve Features and Materials
Sieves used in construction industry, especially for cement analysis, are made from materials that keeps durability and sieving accuracy. These sieves are full height, typically 8 inches in diameter, designed for heavy usage in various testing applications. Each sieve is supplied with protective cartons and formal documentation such as a Certificate of Analysis for quality and reliability.
A sieve consists of a frame made from materials that can withstand the abrasive nature of cement like stainless steel or nickel plated brass frame. The mesh is made from stainless steel wire cloth that can maintain its shape under mechanical stress of sieving cement. Robust construction is necessary for consistent sieve analysis results. Materials used in sieves are chosen for their ability to withstand construction process and give accurate analysis. Explore high-quality wet-wash geological sieves designed for precise particle analysis and durability.
How to do Hydraulic Cement Fineness Test
Hydraulic fineness test can be done by two methods: sieve analysis method and air permeability method. Sieve analysis involves passing a cement sample through a series of standard sieves with different mesh sizes to perform a gradation analysis, evaluating the size distribution. This method allows for a better understanding of material properties by allowing the material to interact with the sieves, thereby facilitating a more comprehensive analysis. The retained amount of cement on each sieve is measured and expressed as percentage of total cement weight. Air permeability method, also known as Blaine method, measures the specific surface area of cement by measuring the time taken for a certain volume of air to pass through a compacted cement bed.
Calculating Cement Fineness
Calculating cement fineness is simple but important. It involves measuring the weight of cement retained on each sieve and percentage of cement passing through each sieve. Cement fineness is expressed as percentage of total cement weight that passes through a specific sieve size, usually 90 μm sieve. Proper production mechanisms and adherence to regulatory standards are crucial to ensure the fineness meets the required specifications.
Different aggregate gradations can create various products such as concrete and asphalt, each with specific applications like recycled concrete and roadbase.
Formula to calculate fineness:
Fineness = (Weight of cement passing through the sieve / Total weight of cement sample) x 100Cement fineness has a big impact on concrete performance in construction. Finer cement particles provide more surface area for hydration resulting to faster strength development and better early strength. Also, concrete and cement particle size distribution affects water requirement, bleeding and plastic shrinkage of concrete. Therefore, accurate determination of cement fineness is crucial to ensure it meets the standard for construction and performs optimally.
Accuracy and Compliance
Accuracy and compliance in sieve analysis is critical for cement and concrete quality and integrity. To get accurate results, follow standard procedures and guidelines like ASTM C204 and BS EN 196-6. Ensure the sieve is calibrated and maintained, with regular check on mesh size and frame condition. Some sieves like one piece brass frame require user calibration to maintains results are accurate and reliable. By following these guidelines and best practices, you can keep your sieve analysis results are accurate and compliant.
Factors that Affect Cement Fineness
Several factors affect fineness including grinding process, clinker composition, cement and storage condition. Grinding process efficiency and control during cement manufacturing has big impact on the fineness of the final product. Type of mill, grinding aids and grinding time all contribute to civil engineering and to achieve the desired particle size. Clinker composition affects its grindability and variation in type and proportion of clinker minerals affect how easy the cement can be ground to the desired fineness.
Cement Fineness Standards
The ASTM C33 standard ASTM C33 standard outlines specifications for fine and coarse aggregates used in hydraulic cement concrete.
In the construction industry, particle size measurement, such as cement fineness standards, plays a critical role in ensuring the quality and durability of structures. These standards ensure that the materials used are of the right quality and consistency for their intended purpose. Understanding the Fineness Modulus of Sand as per IS Code is vital for construction professionals, as it impacts concrete mix design and overall material quality assurance.
Fineness is governed by various standards and codes like ASTM C204 and BS EN 196-6. These standards specify the test procedure, equipment requirement and the acceptable range of fineness for different cement. Follow the recommended procedure and adhere to the standard value for accurate and reliable test results. Cement fineness should not exceed 5% by weight for Portland cement, 10% by weight for Blended cement or concrete and 15% by weight for other type of cement and concrete.