2in Cube Test for Gilson 300K Concrete Compression Machines

2in Cube Test for Gilson 300K Concrete Compression Machines

Concrete testing is a vital process in the construction industry to determine the compressive strength of concrete. This is necessary to ensure the concrete used in commercial and industrial structures meets the required quality and safety standards. Concrete testing involves sampling freshly mixed concrete, pouring it into cube moulds and curing under controlled conditions. Once cured the cube is subjected to a compressive load until failure and engineers can determine if the concrete meets the specified strength requirements. Regular cube verifies the consistency and durability of concrete, giving contractors and suppliers confidence the material will perform as expected in the finished structure. By following this process the construction industry can ensure every batch of concrete used in a project is to standard, and the integrity of buildings and infrastructure is safeguarded.

2in Sets includes a lower pedestal and spherically-seated upper platen assembly to position the sample at the right height. Upper platen assembly attaches to the compressive strength testing machine by a locking stem system. The sets are used with the indicated Concrete Compression Machine for concrete strength. In compressive strength two types of specimens are commonly used: specimens. Choosing the right type is important each is used in British and European standards and cylindrical concrete specimens are used in ASTM and American standards. The size of the specimen is 2x2x2in (51x51x51mm) WxDxH, the standard dimension required for accurate and consistent results. The shape and dimension of the specimen is critical for compressive strength measurements and maintaining consistent shapes ensures the load is distributed evenly.

Meets ASTM C109, and AASHTO T 106M/T 106. For precise temperature measurements conforming to ASTM standards, see our ASTM mercury-filled thermometers.

During preparation the concrete mix is poured into a mould which forms the correct shape and dimension of the specimen. The size of the cube mould should be selected based on the largest aggregate in the concrete mix to ensure proper compaction and curing. Proper pour techniques are important to avoid voids and achieve uniform specimens. Tests involve testing hardened concrete to determine its compressive strength and capacity to withstand loads, a key part of quality assurance. The curing period for specimens is typically 7, 14 or 28 days but can be more depending on project requirements. Temperature control during curing and testing is important for accurate results. Traditional can be time consuming but technology is helping to speed up the process.

The compressive strength formula is used to calculate the strength of the specimen by dividing the maximum load at failure by the cross section area, following the standard test method. These procedures ensure compliance with industry standards and provide reliable data for quality control.

Features:

• Steel construction

• Upper platen assembly attaches to compressive strength testing machine with locking stem system

Specimen Size 2 x 2 x 2in (51x51x51mm) WxDxH

Dimensions

Upper Platen: 3.13 x 5in (79 x 127mm), Dia.xH

Pedestal: 2.83 x 11in (72 x 279mm), Dia.xH

Meets Methods: AASHTO T106 ASTM C 109, Autoclave Expansion for Portland Cement, ASTM C151, Expansion Index Consolidometer

Formula

The formula is a simple calculation to determine the compressive strength of a cube. The formula is:

Compressive Strength = Maximum Load Applied / Cross-sectional Area

In this formula the max load is the greatest force the cube can withstand before failure, measured in units such as kilograms or pounds. The cross-sectional area is the surface area of one face of the cube, typically measured in square centimeters or square inches. By dividing the max load by the cross-sectional area engineers can measure the compressive strength of the concrete. This value is then compared to project specifications and national concrete standards to ensure the concrete meets the required strength. Using the test formula is an important part of quality control to confirm the strength of the concrete is suitable for its intended use.

What is Compressive Strength

Compressive strength is one of the key properties of concrete, its ability to resist crushing forces and support loads. It is measured as the maximum force a material can withstand per unit area before failure. In concrete terms compressive strength of concrete is usually expressed in pounds per square inch (psi) or megapascals (MPa). Several factors affect the compressive strength of concrete including the water-cement ratio, type and size of aggregates and curing conditions. Proper curing is important to achieve the desired strength as it allows the concrete to fully hydrate and develop its structural properties. Understanding the compressive strength of concrete enables engineers and builders to design structures that are safe and durable, so the material can withstand the loads and stresses it will be subjected to during its service life.

Compression Testing Machine Overview

A compression testing machine is a specialized device for compressive strength of concrete and cylindrical specimens. The machine has a robust loading frame, a hydraulic or mechanical system to apply force and precise controls to regulate the rate of loading. During the testing process the concrete specimen is placed between two platens and a steadily increasing load is applied until the specimen fails. The max load at the point of failing is recorded and used to calculate the compressive strength of the concrete. Compression testing machines are built to meet national concrete standards to ensure accurate and repeatable results. These machines are used in laboratories and quality control facilities to verify the concrete used in construction projects meets the required strength and safety criteria.

Preparation and Handling

Proper preparation and handling is crucial to get accurate and reliable results. The process starts by filling cube moulds with freshly mixed concrete, ensuring the mix is placed in layers. Each layer is compacted using a tamping rod or vibrating table to remove air pockets and achieve the desired consistency. Once the moulds are filled and compacted are left to cure, usually in a controlled environment or curing tank, for a specified period. After curing, they are carefully removed from the moulds and prepared. High-quality Ottawa sand for cube mold tests is recommended to ensure accurate compressive strength results. The concrete are then placed in a compression testing machine, where a load is applied gradually until bad occurs. The load at the point of deterioration is recorded and the compressive strength is calculated using the formula. Attention to detail during preparation, curing and handling ensures the results reflect the true strength of the concrete, for quality assurance in construction projects.