Abstract
Harmless treatment of the huge volume of contaminative waste drilling mud becomes a challenging task in shaft drilling. Due to the similarity between the mud and clay slurry, waste drilling mud with modifications is proposed to replace the clay slurry, to prepare clay-cement-like grouts, i.e. waste drilling mud-cement grout (MTG). Properties of MTG grouts including stability, flowability, plastic strength, groutable period, rheological properties at fresh state and compressive strength at hardened state are experimentally investigated, while case study is employed to examine the applicability of MTG grouts in practical applications. Observed results confirmed the reliability of MTG grouts.
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