Plastic concrete for diaphragm wall and preparation method and construction process thereof

Abstract

The invention discloses plastic concrete for a diaphragm wall and a preparation method and a construction process of the plastic concrete, and relates to the technical field of building materials. Theplastic concrete for a diaphragm wall is mainly prepared from the following concrete raw materials in parts by weight: 60-120 parts of cement, 100-150 parts of water and 2-8 parts of polyvinyl alcohol fibers. The concrete raw materials also comprise the following concrete powder in parts by weight: 150-230 parts of broken stone, 200-250 parts of sand and 50-100 parts of fly ash. The concrete rawmaterials also comprise modified bentonite, and the modified bentonite is mainly prepared from the following raw materials in parts by weight: 35-45 parts of bentonite, 5-12 parts of soluble zircon salt and 2-5 parts of tetraethylammonium chloride. The preparation method comprises the following steps of: mixing materials, preparing the plastic concrete and the like. The plastic concrete for a diaphragm wall has the advantage of good mechanical property. The preparation method has the advantage that the mechanical property of the product can be improved.

Description

technical field [0001] The invention relates to the technical field of building materials, in particular to a plastic concrete for cut-off walls, a preparation method and a construction process thereof. Background technique [0002] Plastic concrete is a kind of highly fluid concrete with less cement content and mixed with bentonite and other materials. It has the characteristics of low strength, low elastic modulus and large strain. The elastic modulus can reach below 2000. It is a flexible concrete material. It can be well adapted to softer foundations, and at the same time has good anti-seepage performance, and has gradually been widely used in the field of anti-seepage walls in hydraulic engineering. [0003] In order to improve the deformation performance of plastic concrete, it is generally necessary to add a certain amount of fly ash to plastic concrete. Adding fly ash to plastic concrete can help improve the workability of plastic concrete, reduce the modulus of elas...

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Problems solved by technology

[0004] In view of the above-mentioned related technologies, the inventor believes that during the preparation of plastic concrete, the addition of fly ash reduces the amount of cement and improves the fluidity of concrete. During the use of plastic concrete, heavy components in plastic concrete are prone to occur Settlement is not conducive to the uniform dispersion of components in plastic concrete, and has a certain adverse effect on the mechanical strength of plastic concrete.

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