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Manufacturing method of artificial lightweight aggregate or super lightweight aggregate multifunctional concrete

A manufacturing method and technology for lightweight aggregates, which are applied in the manufacture of new concrete materials, artificial lightweight aggregates or ultra-light aggregate multifunctional concrete, environmental engineering and construction fields, and can solve the problems of heavy weight, high labor intensity and thermal performance. To achieve the effect of saving energy and resources, easy to ensure quality, and simple management

Active Publication Date: 2017-01-11
冯乃谦 +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the production of structural components, ordinary concrete is still used, which is heavy (2450kg / m3), strong vibration is required during molding, and watering and maintenance are required after demoulding; the labor intensity is high, disturbing the people, and consumes a lot of water resources and resources. energy; more importantly, poor thermal performance; using ordinary concrete as exterior wall panels, the interior is cold in winter and hot in summer, and the livability of people is poor

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Prepare ultra-light aggregate multifunctional concrete with a bulk density of ≤1000kg / m3 and a compressive strength of about 12MPa: Take 1 part of cement (300kg / m3), 0.4 part of mineral powder, 0.4 part of fly ash, 0.1 part of microbeads, and 0.1 part of silica fume 0.5 part of water, 0.12 part of vitrified microbeads, 0.4 part of river sand, 0.7 part of ultra-light aggregate, and special admixture C=M×3.0%, (C=A:B=1:0.15), Inhibit shrinkage admixture dosage D=M×2.0%, (D=CA:MB=1.0:1.0);

[0032] Pour the measured ultra-light aggregate and vitrified microbeads into a forced mixer and stir, and spray half of the weighed water into the mixer to make the surface of ultralight aggregate and vitrified microbeads absorb water and moisten , then pour in the measured cement, mineral powder, fly ash, microbeads, silica fume, and measured river sand and shrinkage-inhibiting admixture D, and stir together for 1.0 minutes, then pour in the remaining measured water, stir for 1.0 minu...

Embodiment 2

[0035] Prepare multifunctional lightweight aggregate concrete with a dry bulk density of about 1200kg / m3 and a compressive strength ≥ 16MPa:

[0036] Take 1 part of cement (320kg / m3), 0.4 part of mineral powder, 0.4 part of fly ash, 0.1 part of microbead, 0.1 part of silicon fume, 0.48 part of water, 0.1 part of vitrified microbead, 0.8 part of ultralight aggregate, and Sand 0.55 parts,

[0037] And special admixture C=M×3.0%, (C=A:B=1:0.13),

[0038] Inhibiting shrinkage additive D=M×2.5%, (D=CA:MB=1.0:1.0),

[0039] Pour the measured ultra-light aggregate and vitrified microbeads into a forced mixer and stir, and spray half of the weighed water into the mixer to make the surface of ultralight aggregate and vitrified microbeads absorb water and moisten , then pour in the measured cement, mineral powder, fly ash, microbeads, silica fume, and measured river sand and shrinkage-inhibiting admixture D, and stir together for 1.0 minutes, then pour in the remaining measured water,...

Embodiment 3

[0042] Prepare multifunctional lightweight aggregate concrete with a bulk density of 1400kg / m3 and a compressive strength of about 20MPa:

[0043] According to the ratio of the above-mentioned multifunctional concrete composition materials, take 1 part of cement (340kg / m3), 0.4 part of mineral powder, 0.3 part of fly ash, 0.20 part of microbead, 0.10 part of silica fume, 0.45 part of water, and 0.1 part of vitrified microbead parts, light aggregate 0.9 parts, river sand 0.7 parts,

[0044] And special admixture C=M×3.3%, (C=A:B=1:0.12),

[0045] And inhibit shrinkage additive D=M×2.5%, (D=CA:MB=1.0:1.5),

[0046] Pour the measured ultra-light aggregate and vitrified microbeads into a forced mixer and stir, and spray half of the weighed water into the mixer to make the surface of ultralight aggregate and vitrified microbeads absorb water and moisten , then pour in the measured cement, mineral powder, fly ash, microbeads, silica fume, and measured river sand and shrinkage-inhibi...

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Abstract

The invention relates to a manufacturing method of artificial lightweight aggregate or super lightweight aggregate multifunctional concrete and belongs to the technical field of novel concrete materials, environmental engineering and construction. Firstly, a special additive C for preparing the artificial lightweight aggregate or super lightweight aggregate multifunctional concrete is manufactured, a shrinkage restraining additive D is manufactured, after cement, mineral powder, coal ash, microbeads, silica powder, water, glass beads, river sand and other materials are weighed in proportion, the materials are mixed according to the process requirement, and the artificial lightweight aggregate or super lightweight aggregate multifunctional concrete is obtained. According to the method, the multifunctional concrete is manufactured from domestic existing concrete raw materials, industrial residues and other materials, and the product has the functions of self-compaction, self-maintenance, low hydration heat, low shrinkage, high durability and high plasticity retention, and can be applied to constructional engineering, civil engineering, traffic engineering and the like. The manufacturing method has the advantages that construction is convenient, quality is easy to guarantee, management is easy and convenient, and cost is low, energy and resources are saved, and the requirements of environmental protection are met.

Description

technical field [0001] The invention relates to a manufacturing method of artificial lightweight aggregate or ultra-light aggregate multifunctional concrete, which belongs to the technical fields of new concrete materials, environmental engineering and construction. Background technique [0002] Now, at home and abroad, the structural components of houses are prefabricated in factories and assembled on site, so that the construction of houses can be completed in a high-quality, high-speed and green environment. This is a new direction for the development of domestic housing construction technology. However, in the production of structural components, ordinary concrete is still used, which is heavy (2450kg / m3), strong vibration is required during molding, and watering and maintenance are required after demoulding; the labor intensity is high, disturbing the people, and consumes a lot of water resources and resources. Energy; more importantly, poor thermal performance; using ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/00
CPCC04B28/00C04B2111/40C04B2201/20C04B14/02C04B18/08C04B14/22C04B18/146C04B14/06C04B24/16C04B14/12C04B24/24C04B14/047C04B22/143
Inventor 冯乃谦马展祥廖长生杜波覃善总李春飞李崇智
Owner 冯乃谦
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