Lightweight concrete composition

A technology for lightweight concrete and composition, applied in the field of lightweight concrete composition and concrete, can solve problems such as poor seismic performance, and achieve the effects of improving seismic performance, promoting foaming volume, and improving compressive strength

Inactive Publication Date: 2019-04-12
刘玉婷
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In the public consciousness, concrete materials are mostly thick and heavy, generally composed of cement and mortar. Such building materials are mostly thick, but the potential disadvantage is poor seismic performance

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0015] The lightweight concrete composition in this embodiment includes Portland cement, aggregate, fly ash, steel slag, acid pulp waste liquid, polypropylene short fiber and high-efficiency superplasticizer. The mass ratio of Portland cement, aggregate, fly ash and steel slag is 10:5:4:1. The specific preparation process is:

[0016] 1. Preliminarily stir the mass ratio of Portland cement, aggregate, fly ash and steel slag into a mixture;

[0017] 2. Add an appropriate amount of water to the mixture in step 1, wherein the mass ratio of water to the mixture is 1:2, and stir at room temperature for 15 minutes to prepare water mortar;

[0018] 3. Mix and stir the water mortar, acid pulp waste liquid, polypropylene short fiber, and high-efficiency superplasticizer again. The dosage of polypropylene short fiber is 0.7kg / m3, and the acid pulp waste liquid and Portland cement The mass ratio is 1:10, and the mass ratio of acid pulp waste liquid and high-efficiency superplasticizer ...

Embodiment 2

[0020] The lightweight concrete composition in this embodiment includes Portland cement, aggregate, fly ash, steel slag, acid pulp waste liquid, polypropylene short fiber and high-efficiency superplasticizer. The mass ratio of Portland cement, aggregate, fly ash and steel slag is 10:5:5:2. The specific preparation process is:

[0021] 1. Preliminarily stir the mass ratio of Portland cement, aggregate, fly ash and steel slag into a mixture;

[0022] 2. Add an appropriate amount of water to the mixture in step 1, wherein the mass ratio of water to the mixture is 1:3, and stir at room temperature for 15 minutes to prepare water mortar;

[0023] 3. Mix and stir the water mortar, acid pulp waste liquid, polypropylene short fiber, and high-efficiency superplasticizer again. The dosage of polypropylene short fiber is 1kg / m3, and the mass of acid pulp waste liquid and Portland cement Ratio of 1:11, the mass ratio of acidic pulp waste liquid and high-efficiency superplasticizer is 11...

Embodiment 3

[0025] The lightweight concrete composition in this embodiment includes Portland cement, aggregate, fly ash, steel slag, acid pulp waste liquid, polypropylene short fiber and high-efficiency superplasticizer. The mass ratio of Portland cement, aggregate, fly ash and steel slag is 10:5:3:1.

[0026] The specific preparation process is:

[0027] 1. Preliminarily stir the mass ratio of Portland cement, aggregate, fly ash and steel slag into a mixture;

[0028] 2. Add an appropriate amount of water to the mixture in step 1, wherein the mass ratio of water to the mixture is 1:3, and stir at room temperature for 15 minutes to prepare water mortar;

[0029] 3. Mix and stir the water mortar, acid pulp waste liquid, polypropylene short fiber, and high-efficiency superplasticizer again. The dosage of polypropylene short fiber is 0.8kg / m3, and the acid pulp waste liquid and Portland cement The mass ratio is 1:10, and the mass ratio of acidic pulp waste liquid and high-efficiency superp...

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Abstract

The invention discloses a lightweight concrete composition and belongs to the field of building materials. The lightweight concrete composition includes Portland cement, aggregate, fly ash, steel slag, acidic paper pulp waste liquid, polypropylene short fibers and a high-efficiency superplasticizer, the mass ratio of the Portland cement to the aggregate to the fly ash to the steel slag is 10:(5-6):(3-5):(1-2), the mass ratio of the acidic paper pulp waste liquid to the Portland cement 1:(10-11), and the mass ratio of the acidic paper pulp waste liquid to the high-efficiency superplasticizer is(10-11):1. The paper pulp waste liquid is used in a production process of concrete, so that waste is effectively turned into treasure, and the acidic paper pulp waste liquid can promote the foaming volume of foam concrete and further reduce the mass of concrete; in addition, the fly ash and steel slag have larger specific surface area and can improve the compressive strength of a concrete base material; and the addition of the polypropylene short fibers in the foam concrete can prevent concrete cracks, prolong the service life, and improve the seismic performance.

Description

technical field [0001] The invention relates to concrete, specifically a lightweight concrete composition, and belongs to the field of building materials. Background technique [0002] In the public consciousness, concrete materials are mostly thick and heavy, generally composed of cement and mortar. Such building materials are mostly thick, but the potential drawback is poor seismic performance. In recent years, earthquakes have occurred frequently in our country, and the consequences caused by the collapse of houses are even more unimaginable. Some losses can be alleviated if a relatively lightweight concrete composition material is used, and foam concrete can meet this defect. Foam concrete refers to the addition of foam to the concrete material during the production process. A large number of pores are formed inside, making the concrete a lightweight porous concrete. However, the concrete material is modified into porous foam concrete, mainly by adding a foaming agent ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/04C04B111/40
CPCC04B28/04C04B2111/40C04B18/027C04B14/06C04B18/241C04B18/08C04B18/142C04B16/0633C04B2103/32
Inventor 刘玉婷
Owner 刘玉婷
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