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

A plastic concrete and anti-seepage wall technology, which is applied in marine engineering, hydraulic engineering, construction, etc., can solve the problems of easy settlement, adverse effects on the mechanical strength of plastic concrete, uniform dispersion of unfavorable components, etc., to improve crack resistance and performance. Flexural resistance, improvement of mechanical properties of products, and the effect of preventing sedimentation

Active Publication Date: 2021-02-05
四川鼎德商品混凝土有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

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 o...

Method used

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

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0040] Embodiment 1: a kind of preparation method of plastic concrete for anti-seepage wall, comprises the steps:

[0041] S1 Mixing: Take 8.5kg of zirconium oxychloride, add water to prepare a zirconium oxychloride aqueous solution with a mass concentration of 10%, add 40kg of bentonite, stir at a speed of 150 rpm, heat to 75°C for 200min, filter, and The filter cake was roasted at 450° C. for 150 min to obtain zirconium-containing bentonite; take 3.5 kg of tetraethylammonium chloride, add water to prepare an aqueous solution of tetraethylammonium chloride with a mass concentration of 15%, add zirconium-containing bentonite, and use 150 rpm Stir at a speed of 10 minutes, heat to 70°C and react for 140 minutes, filter, dry the filter cake at 150°C for 200 minutes, pulverize the material with a pulverizer, and sieve with a sieve with a pore size of 150 μm. Modified bentonite is obtained until the diameter is not greater than 150 μm. Weigh 190kg of gravel, add 225kg of sand, 75...

Embodiment 2

[0044] The difference between embodiment 2 and embodiment 1 is that embodiment 2 does not add hydroxyethyl methacrylate phosphate, and the others are consistent with embodiment 1.

Embodiment 3-10

[0046] The difference between Example 3-10 and Example 1 is that the addition amount of each raw material in Example 3-10 is different, and the others are consistent with Example 1. The addition amount of each raw material in Example 3-10 is shown in Table 2.

[0047] The addition of each raw material of table 2 embodiment 3-10

[0048]

[0049]

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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...

Claims

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Application Information

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IPC IPC(8): C04B28/04C04B20/06C04B20/02E02B3/04E02B3/16C04B14/10C04B111/27C04B111/34
CPCC04B28/04C04B20/068C04B20/023E02B3/04E02B3/16C04B2111/343C04B2111/27C04B2201/50C04B16/0641C04B18/08C04B14/02C04B14/068C04B2103/302C04B24/003C04B14/104
Inventor 徐东余龙
Owner 四川鼎德商品混凝土有限公司
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