Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Modified soft sandstone baking-free brick

A technology of arsenic sandstone and unburned bricks, which is applied in the field of modified arsenic sandstone unburned bricks, which can solve problems such as difficulty in maintaining integrity, low degree of diagenesis of arsenic sandstone, and aggravated collapsibility when encountering water, so as to promote a virtuous circle and low price , Good frost resistance

Active Publication Date: 2014-05-07
DALIAN UNIV OF TECH
View PDF5 Cites 17 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The reason is that, firstly, there is a large amount of montmorillonite in the fresh sandstone, which swells with water; Friction, mechanical interlocking force and the cementing ability of clay substances are difficult to maintain its integrity, and the loose and porous matrix structure further exacerbates the water collapsibility

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 1

[0024] The raw materials were prepared according to the following mass percentages: 70% of arsenic sandstone, 15% of diagenetic admixture (mineral powder) with pozzolanic activity or potential hydraulicity, 5% of general-purpose Portland cement with grade 32.5, diagenetic agent (hydrogen Sodium oxide) 2%, water 8%, firstly mix the arsenic sandstone, mineral powder and general-purpose portland cement with a mixer for 5 minutes in advance, after the water and sodium hydroxide are completely dissolved, add them to the solid, stir slowly for 3 minutes, quickly Stir for 2 minutes. After pressure molding, demould, natural curing, test its water resistance coefficient and compressive flexural strength. Experimental results: the water resistance coefficient is 0.72, the compressive strength is 15MPa, and the flexural strength is 1.5MPa.

Embodiment 2

[0026] The raw materials were prepared according to the following mass percentages: 70% of arsenic sandstone, 15% of diagenetic admixture (silica fume) with pozzolanic activity or potential hydraulicity, 5% of general Portland cement with grade 32.5, diagenetic agent (hydrogen Sodium oxide) 2%, water 8%, firstly mix the arsenic sandstone, mineral powder and general-purpose portland cement with a mixer for 5 minutes in advance, after the water and sodium hydroxide are completely dissolved, add them to the solid, stir slowly for 3 minutes, quickly Stir for 2 minutes. After pressure molding, demould, after curing for 28 days at a relative humidity of 95% and a temperature of 20 degrees, measure its water resistance coefficient and compressive and flexural strength. Experimental results: the water resistance coefficient is 0.71, the compressive strength is 16MPa, and the flexural strength is 2MPa.

Embodiment 3

[0028] The raw materials were prepared according to the following mass percentage ratios: 45% of arsenic sandstone, 26% of diagenetic admixture (mineral powder) with pozzolanic activity or potential hydraulicity, 15% of general-purpose Portland cement with grade 42.5, diagenetic agent (hydrogen Sodium oxide 3%, water glass 3%), water 8%, first mix the sandstone, mineral powder and general-purpose Portland cement with a mixer for 5 minutes in advance, and add the water and sodium hydroxide to the solid after completely dissolving, slowly Stir for 3 minutes, fast for 2 minutes. After pressure molding, demould, after curing for 28 days at a relative humidity of 95% and a temperature of 20 degrees, measure its water resistance coefficient and compressive and flexural strength. Experimental results: the water resistance coefficient is 0.92, the compressive strength is 28MPa, and the flexural strength is 5.5MPa.

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

PropertyMeasurementUnit
Compressive strengthaaaaaaaaaa
Flexural strengthaaaaaaaaaa
Compressive strengthaaaaaaaaaa
Login to View More

Abstract

The invention discloses a modified soft sandstone baking-free brick, and belongs to the field of a building material. The baking-free brick comprises the following components by mass percent: 10-50% of diagenetic admixture with cinerite activity or latent hydraulicity, 10-15% of universal portland cement, 0.5-40% of diagenetic agent, 8-12% of water and 45-70% of soft sandstone. The method comprises the following steps: mixing the components according to the ratio; carrying out compression molding the components; naturally maintaining, maintaining in a green house under the condition at 30-60 DEG C; carrying out standard maintenance under the conditions that the temperature is 20-30 DEG C and the humidity is greater than 90% or carrying out steam maintenance at the temperature of 60-210 DEG C, so as to obtain the modified soft sandstone baking-free brick. The modified soft sandstone baking-free brick has a good market prospect in the locality, and is low in price, convenient to obtain raw materials, applicable to local promotion, and conducive to promotion of new rural policy of the country.

Description

technical field [0001] The invention belongs to the field of building materials, in particular to a modified arsenic sandstone non-fired brick. Background technique [0002] The Yellow River is the mother river of the Chinese clan, which gave birth to the Chinese civilization in history. However, with the change of history, climate change and human activities, the vegetation in the Yellow River Basin has been destroyed, soil erosion has been serious, and a large amount of sediment has flowed into the Yellow River, causing the river bed of the Yellow River to rise rapidly, and even form a suspended river above the ground, seriously threatening people's lives and Property security even restricts local economic development. [0003] Dongsheng District, Zhungeer Banner, Yijinhuoluo Banner, Dalat Banner of Ordos City, Inner Mongolia, and Shenmu and Fugu counties (banners) of Shaanxi Province are the main arsenic sandstone areas in the Yellow River Basin (with an area of ​​about ...

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): C04B28/04C04B14/04
Inventor 王立久杨大令张婷婷
Owner DALIAN UNIV OF TECH
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com