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

C40 inorganic coating composite anti-freezing concrete and preparation method thereof

An inorganic coating and concrete technology, applied in the field of concrete, can solve problems affecting building strength, etc., and achieve the effect of improving bonding strength, increasing compressive strength, and improving bonding effect

Inactive Publication Date: 2020-12-08
SEISMOLOGICAL BUREAU OF GANSU PROVINCE CHINA EARTHQUAKE ADMINISTRATION
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the later stage of concrete curing, due to the large temperature difference between inside and outside in severe cold areas, small cracks will still appear inside the concrete. With continuous freezing and melting, the internal cracks will gradually increase, which will affect the strength of the overall concrete building.

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
  • C40 inorganic coating composite anti-freezing concrete and preparation method thereof
  • C40 inorganic coating composite anti-freezing concrete and preparation method thereof
  • C40 inorganic coating composite anti-freezing concrete and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0031] A preparation method of C40 inorganic coating composite frost-resistant concrete, which is the following steps:

[0032] 1) Pour sand and gravel into their respective raw material bins for pre-homogenization, the pre-homogenization time is 5-10min, and the stirring speed is 5-10r / min;

[0033] 2) The pre-homogenized sand and stones are placed in a forced mixer and mixed for 2 minutes, and the stirring speed is 3-6r / min;

[0034] 3) Add cement, fiber, polycarboxylate superplasticizer and water into the forced mixer and stir for 5 minutes, then add XT-HPA environment-friendly high-permeability inorganic crystal water repellent and stir for 2 minutes.

Embodiment 1

[0036] The following combination figure 1 The present invention is described in further detail.

[0037] The raw materials involved in the present invention are all commercially available, and the specific specifications are shown in Table 1.

[0038] The specifications of raw materials used in each embodiment of table 1

[0039] components Specification cement 42.5 grade ordinary Portland cement sand Zone Ⅱ natural medium sand pebbles 5-25mm gravel XT-HPA environment-friendly high-permeability inorganic crystalline waterproofing agent — Superplasticizer Polycarboxylate superplasticizer

[0040] A method for preparing inorganic coating composite frost-resistant concrete, comprising the steps of:

[0041] Step 1: 785kg of sand and 999kg of gravel are imported into their respective raw material warehouses for pre-homogenization;

[0042] Step 2: Put 785kg of sand and 999kg of stones in the forced mixer and stir for 2 minutes; ...

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 diameteraaaaaaaaaa
Login to View More

Abstract

The invention discloses C40 inorganic coating composite anti-freezing concrete and a preparation method thereof. The concrete comprises the following components in parts by weight: 400-450 parts of cement; 750-800 parts of sand; 950-1000 parts of stone; 4-5 parts of an additive; and 150-200 parts of water; wherein the additive comprises an XTHPA environment-friendly high-permeability inorganic crystalline waterproofing agent and a polycarboxylate superplasticizer in a weight ratio of 1: 1. The concrete is simple in formula, good in anti-freezing durability and suitable for various engineeringprojects in alpine regions.

Description

technical field [0001] The invention relates to a C40 inorganic coating composite frost-resistant concrete used in an alpine zone and a preparation method thereof, belonging to the technical field of concrete. Background technique [0002] Most areas in our country belong to the severe cold zone, and there are higher requirements for the frost resistance of buildings. Under the conditions of high cold and extreme temperature difference, the internal and external shrinkage of conventional concrete is inconsistent, which leads to the increase of internal stress of concrete and cracks. [0003] In order to improve the frost resistance of concrete, inorganic coatings are usually added to concrete, relying on the performance of inorganic coatings to enhance the bonding performance and waterproof performance of concrete. However, in the later stage of concrete curing, in severe cold areas, due to the large temperature difference between inside and outside, small cracks will still...

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): C04B28/04
CPCC04B28/04C04B2111/76C04B2201/52C04B14/02C04B14/06C04B18/08C04B2103/302C04B2103/65
Inventor 严武建王平王兰民朱朝霞许世阳郭海涛郑海忠王会娟牛富航
Owner SEISMOLOGICAL BUREAU OF GANSU PROVINCE CHINA EARTHQUAKE ADMINISTRATION