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Why does it have to be a Slump Test before pouring concrete every time?

Slump Test
What is the Slump Test?

What is the Slump Test?

Slump Test is an experiment on the collapse of concrete. It is a test of the mixing ratio of concrete ordered from the factory. To get the correct value according to the standard Before pouring concrete in various parts of construction work

Tools used in the Slump Test

Tools used in the Slump Test

1. Model (Mold) is a conical material. made of metal that does not react with cement
2. Tamping Rod is a round steel bar with a diameter of 16 millimeters (5/8 inches) and a length of 610 millimeters (24 inches).

slump value of concrete

slump value of concrete
(CMT 101-2561 Standards for Concrete and Reinforced Concrete)

Foundation A, the slump value of concrete is 5-7.5 cm.
Floor slabs, beams, reinforced concrete walls The slump value of concrete is 5-10 cm.
Column, pier, the slump value of concrete is 5-12.5 cm.
Reinforced concrete fins and thin walls The slump value of concrete is 5-15 cm.

collecting sample cubes

collecting sample cubes

Collect standard size concrete in a cube sized 15x15x15 centimeters for testing. Compressive strength of concrete at 28 days