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For a small to medium project, the cost and time of hiring mixing equipment, labour, plus purchase and storage for the ingredients of concrete, added to environmental concerns (cement dust is an airborne health hazard) [10] may simply be not worthwhile when compared to the cost of ready-mixed concrete, where the customer pays for what they use ...
It also flows much better than ordinary concrete, having the consistency of a milkshake. The first known use of CLSM was in 1964. [ 2 ] CLSM is typically a ready mix concrete rather than soil cement which is a low strength cement made using local soil, and is similar to a slurry .
A higher ratio gives a too fluid concrete mix resulting in a too porous hardened concrete of poor quality. Often, the concept also refers to the ratio of water to cementitious materials, w/cm. Cementitious materials include cement and supplementary cementitious materials such as ground granulated blast-furnace slag (GGBFS), fly ash (FA), silica ...
The global Ready Mix Concrete (RMC) market is valued at US$394.44 billion in 2017 and is expected to reach US$624.82 billion by the end of 2025, growing at a CAGR of 5.92% between 2016 and 2022. [2] A ready mix concrete plant is generally located inside the city, transporting ready-mixed concrete for projects through concrete truck mixers.
Regular concrete can typically withstand a pressure from about 10 MPa (1450 psi) to 40 MPa (5800 psi), with lighter duty uses such as blinding concrete having a much lower MPa rating than structural concrete. Many types of pre-mixed concrete are available which include powdered cement mixed with an aggregate, needing only water. [citation needed]
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