Unlock instant, AI-driven research and patent intelligence for your innovation.

Silica sand water permeable brick and preparation method thereof

A technology of permeable bricks and silica sand, which is applied to clay preparation devices, chemical instruments and methods, cement mixing devices, etc., can solve the problems of poor water permeability, poor use effect, insufficient splitting tensile strength, etc., and achieve water permeability. Excellent, lower production cost, good structural strength

Active Publication Date: 2021-07-16
徐银田
View PDF10 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Existing permeable bricks mostly use cement, stones, etc., and its main component, silica, plays a role in improving structural strength or bonding. If the amount of cement is too large, the water permeability of the bricks will be poor, and the amount of stones will be too much. It is easy to cause insufficient splitting tensile strength, and the actual use effect is not good.

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

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Silica sand water permeable brick and preparation method thereof
  • Silica sand water permeable brick and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0047] This embodiment discloses a silica sand permeable brick and a preparation method thereof, and the dosage of each substance is shown in Table 1;

[0048] Concrete preparation method comprises the following steps:

[0049] Step 1, crushing and pretreating the rice husks according to the mass fraction to obtain rice husks with a porous structure, and cleaning them for later use;

[0050] Preferably, the crushed particle size of the rice husk is 100 μm to 300 μm.

[0051] The process condition of rice husk pretreatment in the preferred step 1 is:

[0052] Add the crushed rice husks to 0.2M to 0.5M sodium hydroxide solution and soak for 8 hours to 12 hours;

[0053] Wash to neutral;

[0054] Spray organosilane. Organosilane is silane coupling agent KH560.

[0055] Step 2, calcining the rice husk obtained in Step 1 and the cement inert gas of the said mass fraction for 2 hours to 5 hours, and cooling to room temperature;

[0056] Preferably, the calcination temperature ...

Embodiment 2

[0063] The main differences between this embodiment and embodiment 1 are shown in Table 1 and Table 2.

[0064] The performance test of the permeable brick obtained in this embodiment after curing for 28 days is as follows:

[0065] The flexural strength is 17.5MPa, the water permeability coefficient is 0.07cm / s, and the splitting tensile strength is 16.7MPa.

Embodiment 3

[0067] The main differences between this embodiment and embodiment 1 are shown in Table 1 and Table 2.

[0068] The performance test of the permeable brick obtained in this embodiment after curing for 28 days is as follows:

[0069] The flexural strength is 18.1MPa, the water permeability coefficient is 0.07cm / s, and the splitting tensile strength is 18.5MPa.

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
particle size (mesh)aaaaaaaaaa
particle sizeaaaaaaaaaa
compressive strengthaaaaaaaaaa
Login to View More

Abstract

The invention discloses a silica sand water permeable brick and a preparation method thereof. The silica sand water permeable brick comprises the following components in parts by mass: 30 to 80 parts of rice husk, 60 to 120 parts of cement, 100 to 180 parts of stone, 300 to 500 parts of silica sand, 3 to 8 parts of dodecanoic acid isopropanol amide, 2 to 5 parts of nekal, and 3 to 10 parts of a polycarboxylic acid water reducing agent. The invention also discloses a preparation method of the water permeable brick. The preparation method comprises the following steps of 1, crushing rice husks, performing pretreatment to obtain rice husks with porous structures, and cleaning the rice husks for later use, 2, putting the rice husks and the cement into inert gas, calcining for 2-5 hours, and cooling to room temperature, and 3, adding the rest components into the mixture obtained in the step 2, adding a proper amount of water, stirring and pressing to obtain the target water permeable brick. A C / SiO2 skeleton obtained by calcining the rice husks is effectively utilized to be matched with bonding of the silica sand, the stones and the cement to form an internal water-permeable channel, and the obtained water-permeable brick has both water permeability and structural strength.

Description

technical field [0001] The invention relates to the technical field of permeable bricks, in particular to a silica sand permeable brick and a preparation method thereof. Background technique [0002] CN108675799B discloses red mud permeable brick and its preparation method. It uses red mud permeable brick as a new type of product with red mud as raw material, which can be applied to the laying of roads and squares. The red mud permeable brick has a porous structure inside, which can make some Precipitation seeps into the ground. The preparation process of red mud permeable bricks is mainly divided into three categories: non-fired type, low-temperature calcined type (350 ° C) and high-temperature sintered type (1100 ° C ~ 1200 ° C), red mud-based permeable bricks have low strength and other durability problems . In the red mud permeable brick of the invention, the permeable brick body is formed by a red mud glass core. The red mud glass core includes red mud particles and a...

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
Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/00B28C5/40
CPCC04B28/00B28C5/402B28C5/404C04B2201/50C04B2111/00284C04B14/02C04B14/06C04B24/124C04B2103/302C04B16/0641C04B18/24C04B24/20
Inventor 徐银田杨卫东章伟
Owner 徐银田