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A cement-modified soil contains a relatively small proportion of Portland cement, less than in ordinary soil-cement. [1] The result is caked or slightly hardened material, similar to a soil, but with improved mechanical properties such as lower plasticity, increased bearing ratio and shear strength, and decreased volume change. The purpose of ...
CLSM consists of a mixture of Portland cement, water, aggregate and sometimes fly ash.Unlike ordinary concrete, CLSM has much lower strength. The strength of CLSM is less than 1,200 pounds per square inch (8.3 MPa), while ordinary concrete has strengths exceeding 3,000 pounds per square inch (21 MPa) [citation needed].
Other cement bound materials (CBM), with less strength but also lower cost, are used. They are rated by strength, from the weakest CBM 1 (also formerly known as soil cement) through CBM 2 to CBM 3, 4, and 5, which are more similar to concrete and are called "lean mix". In the UK, the specification for aggregate used as a subbase in the ...
A 1,300,000-square-foot (120,000 m 2) complex of mixed residential, office, retail and commercial space is being built on 15 acres (61,000 m 2) of former industrial land in downtown Victoria that was contaminated by lead. 10 tonnes of soil was treated with cement, which was mixed into the soil on site simply by using an excavator bucket. The ...
A compressed earth block (CEB), also known as a pressed earth block or a compressed soil block, is a building material made primarily from an appropriate mix of fairly dry inorganic subsoil, non-expansive clay, sand, and aggregate. Forming compressed earth blocks requires dampening, mechanically pressing at high pressure, and then drying the ...
Examples of slurries include: Cement slurry, a mixture of cement, water, and assorted dry and liquid additives used in the petroleum and other industries [1] [2]; Soil/cement slurry, also called Controlled Low-Strength Material (CLSM), flowable fill, controlled density fill, flowable mortar, plastic soil-cement, K-Krete, and other names [3]
A simple approach involves defining different earthworks features in a computer program and then adjusting elevations manually to calculate the optimal cut and fill. More sophisticated software is able to automatically balance cut and fill while also considering the materials.
If there is more than 15% clay it may take more than 10% cement to stabilize the soil, which adds to the cost. [20] If earth contains little clay and holds 10% or more cement, it is in effect concrete. Cement is not particularly environmentally friendly, since the manufacturing process generates large amounts of carbon dioxide. [22]
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