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Water-resistant plastering mortar and preparation method thereof

A plastering mortar and water-resistant technology, which is applied in the field of mortar materials, can solve problems such as poor durability and reduced compressive strength, and achieve the effects of improving strength, reducing dry shrinkage, and good water resistance

Active Publication Date: 2021-07-30
佛山市南海区西樵恒建混凝土有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The plastering mortar generally has a certain drying shrinkage during the hardening process, which makes the surface of the plastering mortar have tiny pores, and the external moisture can easily penetrate into the interior of the mortar from these tiny pores, resulting in the compressive strength of the plastering mortar after wetting. reduced, thus exhibiting poorer durability

Method used

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  • Water-resistant plastering mortar and preparation method thereof
  • Water-resistant plastering mortar and preparation method thereof
  • Water-resistant plastering mortar and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1-5

[0055] S1, 10.5 kg of polyacrylic acid, 3 kg of phosphate and 3.6 kg of hydroxypropyl methylcellulose mix, i.e., polyacrylic acid, tributyl phosphate, and hydroxypropylmethylcellulose ratio of 3.5: 1: 1.2, the stirring speed is 120 r / min, the stirring process is warmed to 65 ° C and the temperature is 45min, and the microcapsule core is obtained;

[0056] S2, taking 9 kg of microcapsules and 5 kg of diatomaceous earth mixing, i.e., the mass ratio of diatomaceous earth and mortar microcapsules is 1: 1.8, mixed with 120 r / min, stirring, stirred for 20 min, mixed uniformly after placing 18h to get microcapsules;

[0057] S3, the epoxy resin, the plasticizer is mixed with the microcapsules such as Table 2, and stirred at 120 R / min, stirring for 15 min, obtaining a microcapsule mixture;

[0058] S4, the cement, aluminosilicate zeolite powder, an additive, and half of water are added to the microcapsule, mixed at 120 R / min, mixed for 15 min, and obtain a mortar pre-mixture;

[0...

Embodiment 6

[0064] The difference from Example 5 is only: taking 13.8 kg of microcapsules and 6 kg of diatomaceous earth mixing, i.e., the mass ratio of Celite and the microcapsule core liquid is 1: 2.3 to obtain microcapsules.

Embodiment 7

[0066] The difference from Example 5 is only: mixing 11 kg of polyacrylic acid, 2 kg of phosphate tributyl and 3.4 kg of hydroxypropyl methylcellulose, ie polyacrylic acid, tributyl phosphate, hydroxypropyl methylcellulose The mass ratio is 5.5: 1: 1.7, and the microcapsule core is obtained.

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Abstract

The invention relates to the field of mortar materials, and particularly discloses water-resistant plastering mortar and a preparation method thereof. The water-resistant plastering mortar comprises the following raw materials: cement, sand, water, fly ash, anhydrous calcium sulfate, aluminosilicate zeolite powder, microcapsules, epoxy resin, a plasticizer and an additive, wherein the microcapsule takes diatomite as a capsule wall, and takes polyacrylic acid, tributyl phosphate and hydroxypropyl methyl cellulose as a capsule core. The preparation method comprises the following steps: uniformly mixing the epoxy resin, the plasticizer and the microcapsule to obtain a microcapsule mixture; adding cement, aluminosilicate zeolite powder, an additive and half of water into the microcapsule mixture, and uniformly mixing to obtain a mortar premix; and adding the sand, the fly ash, the anhydrous calcium sulfate and the remaining half of water into the mortar premix to obtain the water-resistant plastering mortar. According to the preparation method of the water-resistant plastering mortar, the water-resistant plastering mortar with good water resistance can be prepared.

Description

Technical field [0001] The present application relates to the field of mortar materials, and more particularly, it involves a water-resistant plastering mortar and a preparation method thereof. Background technique [0002] Plastering mortar is applied to the outer wall of the building, the outer wall of the inner wall or the wall of the inner wall, and the plastering mortar has a smooth and beautiful hard layer in the wall. It usually judges the pressure strength of the mortar. Construction performance of mortar. [0003] The plastering mortar generally has a certain dry risk during the hardening process, so that the surface of the plastering mortar has a small pore, and the outer moisture is easily penetrated from these tiny pores to the inside of the mortar, resulting in a pressure-resistant strength after plastering grinding Decrease, thereby demonstrating poor durability. Inventive content [0004] In order to improve the water resistance of plastering mortar, the present a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/04C04B24/38C04B14/04C04B14/08C04B24/00C04B24/26C04B24/28C04B24/42C04B111/27
CPCC04B14/047C04B14/08C04B24/003C04B24/2641C04B24/281C04B24/383C04B24/42C04B28/04C04B40/0039C04B2111/27C04B2201/50C04B14/06C04B18/08C04B22/143C04B2103/0068
Inventor 兰丁就黎锦照何以津
Owner 佛山市南海区西樵恒建混凝土有限公司
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