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CONVEYING CONCRETE TO CONSTRUCTION SITE

After the formwork, the steel work, and embedded items are ready, a final inspection should be conducted to make sure that the plant and equipment are ready to go. Read: SITE PREPARATION FOR CONCRETE PLACING Ordering the right quantity of concrete and having the ready-mix provider ready to supply it at the specified rate are both important. Transporting […]

15 ADVANTAGES OF USING STEEL FIBERS IN CONCRETE

What is steel fiber reinforced concrete? Steel fiber reinforced concrete is an alternative to traditional reinforced concrete for certain application areas. Steel fibers are discontinuous, 3-dimensionally orientated, isotropic reinforcement, once they are mixed into the concrete. Steel fibers bridge the crack at very small crack openings, transfer stresses and develop post crack strength in the […]

WHEN TO REMOVE CONCRETE FORMS?

In this article, we discuss the appropriate time to remove the formwork after casting concrete. Concrete formwork removal, also known as strike-off or stripping of formwork, should only be done after the concrete has strengthened enough to withstand at least twice the amount of stress that it could experience during formwork removal. When removing formwork, it’s equally important to make […]

ULTRASONIC PULSE VELOCITY TESTING ON CONCRETE

What is Ultrasonic Pulse Velocity Testing? Ultrasonic Pulse Velocity (UPV) is an efficient non-destructive testing (NDT) technique for ensuring concrete material quality and identifying structural component damage. Traditionally, the UPV techniques have been employed for material quality control, primarily for homogeneous materials like metals and welded joints. The test is now commonly used to assess concrete materials because to recent […]

SELECTION OF ANTIFREEZE ADMIXTURES

An antifreeze admixture is selected according to the design temperature at which concrete is supposed to harden. If the temperature rises above the design value or even becomes positive as the concrete is cured, its hardening will accelerate, and it will attain the design strength earlier than planned. It is not recommended to expose concrete that has been mixed with antifreeze […]

ASTM C136 DRY SIEVE ANALYSIS OF FINE AND COARSE AGGREGATES

Dry Sieve Analysis of Fine and Coarse Aggregates Purpose of ASTM C136 This post describes the procedure of ASTM C136 to determine the particle size distribution of fine and coarse aggregates by sieving Why is ASTM C136 Important? This test provides a mean to control the quality of aggregates production, which are essential components in concrete and asphalt […]

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