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Foam lightweight concrete for road and bridge filling and preparation method thereof

A light-weight foam and concrete technology, which is applied in applications, household utensils, ceramic products, etc., can solve the problems of poor versatility, achieve improved performance, wide application range, and improve physical properties

Inactive Publication Date: 2018-12-11
中冶成都勘察研究总院有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, there is no uniform standard for the ratio of foam concrete. The versatility of the subgrade for different rock and soil conditions and environmental conditions is relatively poor. Research on the ratio of foam concrete suitable for local rock and soil conditions and environmental conditions can improve the engineering performance of foam concrete. It is of great significance to the popularization and application of foam concrete technology

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] The present embodiment provides a kind of foam lightweight concrete that is used for road and bridge filling, and raw material formula is as follows by mass:

[0023] 100 parts of geopolymer cement, 1.0 parts of water reducing agent, 4 parts of early strength agent, 3 parts of admixture, 2 parts of fiber, 15 parts of foaming agent, 30 parts of ultrafine slag powder, 10 parts of gel material, diatom mud 1 part, 80 parts of water;

[0024] The admixture contains the following components by mass: 7 parts of calcium oxide, 18 parts of iron oxide, 25 parts of magnesium oxide, 0.5 parts of butyl phosphate, 5 parts of polyurethane, 7 parts of sodium nitrite, 3 parts of silane coupling agent, polyethylene 4 parts of pyrrolidone, 3 parts of silicon carbide;

[0025] The foaming agent contains the following components by mass: 3 parts of limestone powder, 3 parts of slag, 6 parts of modified diatomite, 7 parts of polyacrylic resin, 3 parts of polyethylene glycol, 4 parts of sulp...

Embodiment 2

[0027] The present embodiment provides a kind of foam lightweight concrete that is used for road and bridge filling, and raw material formula is as follows by mass:

[0028] 200 parts of geopolymer cement, 1.2 parts of water reducing agent, 4 parts of early strength agent, 4 parts of admixture, 3 parts of fiber, 18 parts of foaming agent, 45 parts of ultrafine slag powder, 11 parts of gel material, diatom mud 2 parts, 90 parts of water;

[0029] The admixture contains the following components by mass: 8 parts of calcium oxide, 20 parts of iron oxide, 28 parts of magnesium oxide, 0.8 parts of butyl phosphate, 8 parts of polyurethane, 8 parts of sodium nitrite, 4 parts of silane coupling agent, polyethylene 5 parts of pyrrolidone, 3 parts of silicon carbide;

[0030] The foaming agent contains the following components by mass: 5 parts of limestone powder, 5 parts of slag, 7 parts of modified diatomite, 9 parts of polyacrylic resin, 5 parts of polyethylene glycol, 5 parts of sul...

Embodiment 3

[0032] The present embodiment provides a kind of foam lightweight concrete that is used for road and bridge filling, and raw material formula is as follows by mass:

[0033] 250 parts of geopolymer cement, 1.5 parts of water reducing agent, 5 parts of early strength agent, 5 parts of admixture, 4 parts of fiber, 20 parts of foaming agent, 60 parts of ultrafine slag powder, 12 parts of gel material, diatom mud 3 parts, 130 parts of water;

[0034] The admixture contains the following components by mass: 10 parts of calcium oxide, 22 parts of iron oxide, 30 parts of magnesium oxide, 1 part of butyl phosphate, 10 parts of polyurethane, 10 parts of sodium nitrite, 5 parts of silane coupling agent, polyethylene 6 parts of pyrrolidone, 4 parts of silicon carbide:

[0035] The foaming agent contains the following components by mass: 7 parts of limestone powder, 8 parts of slag, 9 parts of modified diatomite, 12 parts of polyacrylic resin, 6 parts of polyethylene glycol, 8 parts of s...

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Abstract

The invention discloses foam lightweight concrete for road and bridge filling and a preparation method thereof and relates to the technical field of concrete preparation. A raw material formula of thefoam lightweight concrete comprises the following raw materials in parts by mass: 100 to 250 parts of geopolymer cement, 1.0 to 1.5 parts of a water reducing agent, 4 to 5 parts of an early strengthagent, 3 to 5 parts of an additive, 2 to 4 parts of fiber, 15 to 20 parts of a foaming agent, 30 to 60 parts of ultrafine slag powder, 10 to 12 parts of a gel material, 1 to 3 parts of diatom ooze and80 to 130 parts of water; the preparation method of the foam lightweight concrete comprises the following steps: (1) pouring the geopolymer cement, the water reducing agent, the early strength agent,the fiber, the ultrafine slag powder, the gel material, the diatom ooze and a proper amount of the water into a stirring pot according to the ratio and stirring and mixing; (2) continually adding thefoaming agent into the stirring pot and continuously stirring for 10 to 15 minutes; then adding the additive and continuously stirring 20 to 30 minutes. The concrete prepared by the invention has thecharacteristics of light weight and good commonality.

Description

technical field [0001] The invention relates to the technical field of concrete preparation, in particular to a foam lightweight concrete used for road and bridge filling and a preparation method thereof. Background technique [0002] Foam lightweight concrete is a kind of lightweight filling material, which is composed of cement slurry and a certain proportion of small enough stable bubble groups, which are fully mixed and stirred to form a fluid, and finally solidified and formed. Foam lightweight concrete is light in weight, high in strength, wide in adjustable range, good self-supporting, convenient and fast in construction, and has good technical economy. The application of foam concrete materials to the back filling of road and bridge abutments is an innovative technology that changes the conventional abutment back filling process. The foam concrete material has the advantages of greater strength than conventional backfill, forming a whole after filling, good impact r...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B38/02C04B28/00C04B24/42C04B24/38
CPCC04B28/006C04B40/0039C04B2103/42C04B2111/40C04B2201/20C04B2201/50C04B2103/302C04B2103/10C04B2103/0068C04B14/38C04B16/06C04B16/02C04B14/08C04B18/141C04B2103/445C04B24/003C04B24/2652C04B24/42C04B24/282C04B22/06C04B22/064C04B22/066C04B22/085C04B14/324C04B38/02C04B38/0067C04B14/28C04B7/32C04B14/20C04B24/2641C04B22/143C04B22/08C04B24/26C04B24/383Y02P40/10
Inventor 王勇谢杨张文瀚杨永红
Owner 中冶成都勘察研究总院有限公司
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