Polymer cement-based self-leveling mortar

A self-leveling mortar and cement-based technology, applied in the field of building materials, can solve the problems of rusting of iron products, low elasticity of single-component materials, inconvenient use and transportation, etc. Good self-leveling performance

Inactive Publication Date: 2009-12-02
爱福家居(江苏)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Self-leveling materials are usually divided into organic and inorganic. Organic self-leveling materials mainly include epoxy resin self-leveling materials, which have superior performance but high prices and high construction requirements. They are mainly used in special occasions. Inorganic self-leveling materials can be divided into It is a gypsum-based self-leveling material and a cement-based self-leveling material. Due to poor water resistance, the acidity of the gypsum-based self-leveling material has a rusting effect on iron produc

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0019] Material weight percentage (%)

[0020] Ordinary cement 25

[0021] High alumina cement 6

[0022] Anhydrite 10

[0023] Polymer Latex Powder 2

[0024] river sand 1

[0025] Double Fly Powder 55

[0026] Water reducer 0.3

[0027] Hydroxyethyl methyl cellulose ether 0.5

[0028] Citric acid 0.2

[0029] Weigh the corresponding raw materials according to the above weight ratio and add them to the mixer, stir them evenly at a medium speed and then pack them out. The results are as follows: initial fluidity, 125mm; impact resistance, no cracking or detachment; tensile bond strength, 0.76MP; flexural strength, 13.1MP; Compressive strength, 32.1MP; folding ratio, 2.53. For on-site use, add 20.0% to 25.0% of mixing water and stir evenly before use.

Embodiment 2

[0031] Material weight percentage (%)

[0032] Ordinary cement 21

[0033] High alumina cement 7

[0034] Anhydrite 10

[0035] Polymer Latex Powder 1

[0036] river sand 1

[0037] Fly Ash 59

[0038] Water reducer 0.4

[0039] Hydroxyethyl methyl cellulose ether 0.5

[0040] Tartaric acid 0.1

[0041] Weigh the corresponding raw materials according to the above weight ratio and add them to the mixer, stir them evenly at a medium speed, and then pack them out, and test them according to the above method, the results are as follows: initial fluidity, 141mm; impact resistance, no cracking or detachment ; Tensile bond strength, 0.93MP; flexural strength, 15.4MP; compressive strength, 46.7MP; folding ratio, 2.33. When used on site, add 18.0% to 23.0% of mixing water and stir evenly before use.

Embodiment 3

[0043] Material weight percentage (%)

[0044] Ordinary cement 20

[0045] High alumina cement 5

[0046] Anhydrite 8

[0047] Polymer Latex Powder 3

[0048] river sand 2

[0049] Fly Ash 30

[0050] Double Fly Powder 31

[0051] Water reducer 0.5

[0052] Hydroxyethyl methyl cellulose ether 0.3

[0053] Calcium formate 0.2

[0054] Weigh the corresponding raw materials according to the above weight ratio and add them to the mixer, stir them evenly at a medium speed, and then pack them out, and test them according to the above method, the results are as follows: initial fluidity, 163mm; impact resistance, no cracking or detachment ; Tensile bond strength, 1.19MP; Flexural strength, 14.5MP Compressive strength, 37.4MP; Crash ratio, 2.18. For on-site use, add 20.0% to 25.0% of mixing water and stir evenly before use.

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Abstract

The invention relates to the field of building materials, in particular to polymer cement-based self-leveling mortar for leveling ground, which comprises the following materials in percentage: 20.0 to 30.0 percent of Portland cement, 5.0 to 8.0 percent of high-alumina cement, 8.0 to 12.0 percent of anhydrite, 1.0 to 4.0 percent of polymeric powder, 55.0 to 65.0 percent of mineral admixtures, 0.1 to 0.5 percent of water reducer, 0.5 to 1.0 percent of water-retentive thickening admixture, and 0.05 to 0.30 percent of retarder or 0.05 to 0.20 percent of coagulation accelerator. The polymer cement-based self-leveling mortar has the advantages that: the polymer cement-based self-leveling mortar has the performance characteristics of automatic leveling, high early flexural and compressive strength and high spreading degree on the ground, also has excellent performance of high bonding strength with base materials, high durability, high compactness, no crack and no reservation of expansion joints after construction, and the like, and can be used for automatically leveling the base of the ground, and repairing old ground, sand ground and the ground.

Description

technical field [0001] The invention relates to the field of building materials, in particular to a polymer cement-based self-leveling mortar for ground levelling. Background technique [0002] Ground self-leveling material is a reform of traditional ground materials. Its use can effectively solve the problems of uneven ground, sanding, pitting, damage and other problems in engineering construction. It can also be used for repairing old ground such as damage and sanding. . [0003] Self-leveling materials are usually divided into organic and inorganic. Organic self-leveling materials mainly include epoxy resin self-leveling materials, which have superior performance but high prices and high construction requirements. They are mainly used in special occasions. Inorganic self-leveling materials can be divided into It is a gypsum-based self-leveling material and a cement-based self-leveling material. Due to poor water resistance, the acidity of the gypsum-based self-leveling m...

Claims

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Application Information

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IPC IPC(8): C04B28/14C04B18/08C04B24/22C04B111/62
CPCC04B2103/12C04B2111/62C04B28/16Y02W30/91C04B7/02C04B7/32C04B14/28C04B18/08C04B20/0076C04B24/26C04B2103/22C04B2103/302C04B2103/44C04B14/068C04B24/06C04B24/226C04B24/2623C04B24/383C04B22/10C04B24/04
Inventor 龚雁张建荣
Owner 爱福家居(江苏)有限公司
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