A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Unsaturated loess NS composite grouting material and preparation method thereof
The invention relates to an unsaturated loess NS composite grouting material and a preparation method thereof. The material at least comprises the following components in percentage by weight: 40 to 80% of aeolian sand, 5 to 30% of sodium hydroxide, 1 to 20% of disodium hydrogen phosphate, 0.1 to 3% of sodium polyacrylate, and 0.1 to 3% of sodium polyphosphate; and is prepared by the following steps: rinsing and purifying aeolian sand, putting aeolian sand and sodium hydroxide into a high-pressure steamer, heating the aeolian sand and sodium hydroxide by steam; then adding a disodium hydrogen phosphate solution, a sodium polyacrylate solution and a sodium polyphosphate solution into the steamer in sequence, cooling to a temperature of 40 DEG C or less after the reactions; pouring out the materials in the steamer, and filtering the materials so as to obtain the supernate. The provided material is non-toxic, odorless, non-corrosive, non-explosive, and non-flammable, and is resistant to deterioration. The shearing strength, compressibility, and permeability of soil, which is enhanced by the grouting material, are all improved.
Unsaturated loess NS composite grouting material and preparation method thereof
The invention relates to an unsaturated loess NS composite grouting material and a preparation method thereof. The material at least comprises the following components in percentage by weight: 40 to 80% of aeolian sand, 5 to 30% of sodium hydroxide, 1 to 20% of disodium hydrogen phosphate, 0.1 to 3% of sodium polyacrylate, and 0.1 to 3% of sodium polyphosphate; and is prepared by the following steps: rinsing and purifying aeolian sand, putting aeolian sand and sodium hydroxide into a high-pressure steamer, heating the aeolian sand and sodium hydroxide by steam; then adding a disodium hydrogen phosphate solution, a sodium polyacrylate solution and a sodium polyphosphate solution into the steamer in sequence, cooling to a temperature of 40 DEG C or less after the reactions; pouring out the materials in the steamer, and filtering the materials so as to obtain the supernate. The provided material is non-toxic, odorless, non-corrosive, non-explosive, and non-flammable, and is resistant to deterioration. The shearing strength, compressibility, and permeability of soil, which is enhanced by the grouting material, are all improved.
Unsaturated loess NS composite grouting material and preparation method thereof
ZHAO SHENGJIE (author) / WANG ZHIJUN (author) / GENG SHENGMING (author) / DU ZHIWEI (author) / LUO JIANWEN (author) / XU JIANJUN (author) / WU JUN (author) / LIU BIN (author) / ZHANG HONGJIE (author) / YANG PENG (author)
2015-05-20
Patent
Electronic Resource
English
IPC:
C04B
Kalk
,
LIME
Collapsible loess composite grouting material as well as preparation method and application thereof
| European Patent Office | 2020
Alkali-activated geopolymer grouting material for loess foundation and preparation method thereof
| European Patent Office | 2020
Composite grouting material and preparation method thereof
| European Patent Office | 2021
| European Patent Office | 2023
Composite grouting reinforcement material and preparation method thereof
| European Patent Office | 2022