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Concrete Grouting Abandoned Underground Pipe

the grout filling. The 1” ball valve on the discharge pipe was opened slightly to release the air displaced by the grout and maintain inflation pressure between 4 and 5 ½ psi. Neat concrete was used for grout with approximately one cu ft of concrete to a cu ft of water. Our main products include crushing equipment, sand making equipment, beneficiation equipment, grinding equipment and building materials equipment, welcome to purchase;

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