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Anti-dispersant of concrete for coagulated seabank underwater

An anti-dispersant and concrete technology, which is applied in the field of concrete construction and underwater riprap casting and consolidation mortar, can solve the problems of poor adaptability of cement varieties, long mixing time, long setting time, etc., to reduce material loss and hardening strength. loss, simple manufacturing process, reduced effect of material dispersion

Inactive Publication Date: 2007-11-21
BC P INC CHINA NAT PETROLEUM CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] The flocculants for underwater non-dispersible concrete used in existing underwater consolidation seawalls mainly include polyacrylamides, methyl celluloses, naphthalene sulfonates, sulfonated melamines, and lignin sulfonates , its disadvantages are that when added to mortar and concrete mixture, its setting time is long, the early strength growth is slow, the mixing time is long, and the anti-dispersion ability is insufficient in the environment of high drop and high flow rate, and it is not suitable for cement varieties. poor sex
The existing polysaccharide anti-dispersion agent, the early strength of the concrete mixture is not high, and the anti-dispersion effect needs to be improved

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0014] The anti-dispersant agent for underwater consolidation seawall concrete is composed of 1 weight part of methyl-gum-based polysaccharide with a molecular weight of 4 to 80,000, 2.5 parts by weight of 1,3-beta glucose, and 3 parts by weight of acrylic acid, phenol, p- The amino-sodium carboxylate copolymer prepared by aminobenzenesulfonic acid and sodium vinylbenzenesulfonate, 0.08 parts by weight of ethylene oxide-propylene oxide copolymer, 5 parts by weight of calcium acetate, 0.2 parts by weight of lithium chloride, 0.2 parts by weight of Parts of lithium carbonate, 0.3 parts by weight of urotropine, and 0.04 parts by weight of triterpene saponins.

[0015] Raw materials used are commercially available

[0016] Table 1 shows the performance comparison test between the anti-dispersant agent for underwater consolidation seawall concrete of the present invention and the performance of existing polyacrylamide flocculants.

[0017] Wherein the material mix ratio both are: ...

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Abstract

A concrete anti-dispersant for curing sea embankment underwater consists of methyl-gum-base polysaccharose, 1,3-beta glucose, amino-sodium carboxylic multi-polymer, ethylene oxide-epoxypropane multi-polymer, lime acetate, lithium chloride, lithium carbonate, urotropine and triterpene saponin. It has fast coagulating speed for underground mortar and concrete mixture, high strength and strong anti-dispersion. It can be used for curing engineering underground.

Description

technical field [0001] The invention relates to an anti-dispersant agent for concrete used for underwater consolidation of seawalls, which is used for underwater riprap pouring consolidation mortar and concrete construction under the impact of water flow. Background technique [0002] The flocculants for underwater non-dispersible concrete used in existing underwater consolidation seawalls mainly include polyacrylamides, methyl celluloses, naphthalene sulfonates, sulfonated melamines, and lignin sulfonates , its disadvantages are that when added to mortar and concrete mixture, its setting time is long, the early strength growth is slow, the mixing time is long, and the anti-dispersion ability is insufficient in the environment of high drop and high flow rate, and it is not suitable for cement varieties. Poor sex. The existing polysaccharide anti-dispersion agent, the early strength of the concrete mixture is not high, and the anti-dispersion effect needs to be improved. C...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B24/38C04B24/28
CPCC04B2111/24C04B2111/74C04B2103/0008C04B40/0039
Inventor 周伟许海彬林鲜张长民
Owner BC P INC CHINA NAT PETROLEUM CORP
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