Hexadecyl trimethyl ammonium bromide expansive soil improvement agent

A technology of cetyltrimethylamine bromide and modifier, applied in the field of geotechnical engineering, can solve problems such as expansion and shrinkage deformation and damage of expansive soil slopes, achieve improved engineering properties, strong adsorption capacity, simple and convenient construction Effect

Inactive Publication Date: 2006-10-25
HOHAI UNIV
View PDF0 Cites 9 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Effectively solve the problem of expansion and contra

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0009] Improver preparation, taking the preparation of 1000ml improver as an example, the steps are as follows: (1) room temperature, 20°C; weigh 1.7g of slaked lime and let it dissolve in 1000ml of water at room temperature, the solubility of slaked lime at 20°C is 0.17g, Complete the preparation of saturated lime aqueous solution; (2) the dry soil quality that needs to improve soil body is 1000g, is 0.5% (hexadecyltrimethylammonium bromide quality: dry soil quality=0.5: 99.5) by weighing all Needed cetyltrimethylammonium bromide (CTMAB) 5.0g; (3) dissolve the weighed cetyltrimethylammonium bromide in saturated lime water.

[0010] The improvement construction steps are as follows: spray the prepared improver on the dry slope surface, spray the second time after the surface of the slope is dry, and then spray the third time after the surface of the slope is dry, and repeat the spraying for several times until Form the desired surface modification layer.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention is a palmityl trimethyl ammonium bromide expansive soil modifier, characterized in comprising the preparing steps of: (1) at room temperature, preparing saturated lime water solution; (2) weighing the needed palmityl trimethyl ammonium bromide in the mass ratio of palmityl trimethyl ammonium bromide to dry soil = 0.5 : 99.5; (3) dissolving the palmityl trimethyl ammonium bromide in the saturated lime water solution, where it needs to notice that the dosage of the saturated lime water solution is able to completely dissolve the palmityl trimethyl ammonium bromide. And the advantages: making the soil property still able to reach the specified standard under the water influence; improving engineering property of expansive soil; unable to cause environmental pollution. And its construction method uses osmotic modification principle and fully uses multi-crack property of expansive soil and is simple and convenient.

Description

technical field [0001] The invention relates to an expansive soil modifier, in particular to a hexadecyltrimethylammonium bromide expansive soil modifier which reduces the expansion and shrinkage of expansive soil. It belongs to the technical field of geotechnical engineering. Background technique [0002] At present, the physical methods to prevent the instability of expansive soil slopes are: (1) Surface water protection: setting up various drainage ditches and establishing a surface drainage network system, so that surface water is not easy to seep into the soil slope; (2) Slope protection, currently the main The reinforcement measures are: ①vegetation protection; ②skeleton protection; ③rock slope protection; ④closed slope protection; ⑤soil nail reinforcement, etc.; These methods cannot effectively prevent the infiltration of rainwater. At the same time, under the influence of the atmosphere, the soil within the depth of the influence of the atmosphere can also cause cha...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): C04B24/12
Inventor 王保田李进张文慧张福海李守德
Owner HOHAI UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap