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Lightweight concrete and production process thereof

A technology of lightweight concrete and production process, applied in the field of concrete manufacturing, can solve the problems of low distribution uniformity of lightweight aggregates, and achieve the effects of large binding force, high degree of binding and good uniformity

Active Publication Date: 2021-01-22
河南兴达商砼有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In order to improve the problem of low distribution uniformity of lightweight aggregate in concrete, the application provides a lightweight concrete and its production process

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0042] The lightweight concrete of this embodiment is made of the following raw materials in parts by weight: 800 parts of lightweight fine aggregate, 300 parts of lightweight coarse aggregate, 500 parts of cement, 20 parts of water reducing agent, 200 parts of water, and 3 parts of dispersant 0.5 part of viscose fiber and 0.6 part of polyester fiber; among them, the lightweight fine aggregate is fine aggregate ceramsite with a particle size of 3 mm, and the lightweight coarse aggregate is coarse aggregate ceramsite with a particle size of 8 mm. granules; the water reducing agent is polycarboxylate high-efficiency water reducing agent; the dispersant is hydroxypropyl methylcellulose; the viscose fiber is high wet modulus viscose fiber, the denier is 120D, the length is 20mm, and the dry strength is 4Cn / dtex; the length of the polyester fiber is 25mm, the dry strength is 7Cn / dtex, the polyester fiber is a special-shaped fiber, and the outer circumference of the cross-section of ...

Embodiment 2

[0050] The lightweight concrete of this embodiment is made of the following raw materials in parts by weight: 800 parts of lightweight fine aggregate, 300 parts of lightweight coarse aggregate, 500 parts of cement, 20 parts of water reducing agent, 200 parts of water, and 3 parts of dispersant 1 part of viscose fiber and 1.5 parts of polyester fiber; among them, the lightweight fine aggregate is fine aggregate ceramsite with a particle size of 3 mm, and the lightweight coarse aggregate is coarse aggregate ceramsite with a particle size of 8 mm. granules; the water reducer is polycarboxylate high-efficiency water reducer; the dispersant is hydroxypropyl methylcellulose; the viscose fiber is high wet modulus viscose fiber, the denier is 200D, the length is 20mm, and the dry strength is 4Cn / dtex; the length of the polyester fiber is 50mm, the dry strength is 7Cn / dtex, the polyester fiber is a special-shaped fiber, and the outer circumference of the cross section of the polyester f...

Embodiment 3

[0058] The lightweight concrete of this embodiment is made of the following raw materials in parts by weight: 600 parts of lightweight fine aggregate, 500 parts of lightweight coarse aggregate, 350 parts of cement, 10 parts of water reducing agent, 120 parts of water, and 3 parts of dispersant 1 part of viscose fiber and 1.5 parts of polyester fiber; among them, the lightweight fine aggregate is fine aggregate ceramsite with a particle size of 3 mm, and the lightweight coarse aggregate is coarse aggregate ceramsite with a particle size of 8 mm. granules; the water reducing agent is polycarboxylate high-efficiency water reducing agent; the dispersant is hydroxypropyl methylcellulose; the viscose fiber is high wet modulus viscose fiber, the denier is 180D, the length is 20mm, and the dry strength is 4Cn / dtex; the length of the polyester fiber is 35mm, the dry strength is 7Cn / dtex, the polyester fiber is a special-shaped fiber, and the outer circumference of the cross-section of t...

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Abstract

The invention relates to the technical field of concrete manufacturing, and particularly discloses lightweight concrete and a production process thereof. The lightweight concrete is mainly prepared from the following raw materials in parts by weight: 600-800 parts of lightweight fine aggregate, 300-500 parts of lightweight coarse aggregate, 350-500 parts of cement, 10-20 parts of a water reducingagent, 100-200 parts of water, 1-3 parts of a dispersing agent, 0.5-1 part of viscose fiber and 0.6-1.5 parts of polyester fiber. The production process of the lightweight concrete comprises the following steps: step 1, uniformly mixing cement, viscose fibers, polyester fibers, a dispersing agent and water to obtain a gel material; 2, uniformly mixing the light fine aggregate and the light coarseaggregate to obtain an aggregate material; and 3, uniformly mixing the gel material and the aggregate material. The lightweight concrete has the advantage of good uniformity.

Description

technical field [0001] This application relates to the technical field of concrete production, more specifically, it relates to a lightweight concrete and its production process. Background technique [0002] Cement has become a large amount of material in the construction industry. Traditional concrete generally uses sand and gravel as aggregates, and the apparent density is generally high, reaching 2000kg / m 3 Above, lightweight concrete refers to the mixture of lightweight aggregate, water, cement and admixtures, and its apparent density is less than 2000kg / m 3 . Compared with traditional concrete, it has the characteristics of low density, good thermal insulation performance and good earthquake resistance, and has been widely used in the construction industry. [0003] Due to the addition of lightweight aggregates in lightweight concrete, lightweight aggregates are generally hollow structures with low strength. When the concrete is subjected to external forces, the inte...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/02C04B111/40
CPCC04B28/02C04B2111/40C04B2201/50C04B2201/20C04B18/027C04B24/383C04B16/0683C04B16/06C04B2103/302
Inventor 吴广胜王俊峰鲁海龙
Owner 河南兴达商砼有限公司
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