After Manufacturing Following Tests are conducted for ensuring strength, durability & quality:

Hydraulic Pressure Test

This test is conducted by applying water pressure from a pump to the pipe covered on all sides to find how much pressure the pipe withstands before it leaks. The pipe quality is approved if the tested pressure is compatible with the ISI specifications.

Three Edge Bearing Test

Three edge bearing test is a destructive load test to determine the strength of a concrete pipe. Strength is main characteristic of concrete Hume pipes. Durability and strength both are measured with Three Edge Bearing Test.

Absorption Test

Cement will mix with more water than is required to eventually combine during hydration of cement paste. As such, some voids will be left behind after the hydration process which affects the strength and durability of concrete. With the presence of air voids in concrete, it is vulnerable to penetration and attack by aggressive chemicals.

Good quality concrete is characterized by having minimal voids left by excess water and therefore, water absorption test for precast concrete pipes is adopted for checking the quality of concrete in terms of density and imperviousness.

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