Special mortar for dry laying of ceramic tiles and construction method thereof

Abstract

The invention discloses special mortar for dry paving of ceramic tiles and a construction method thereof, and the special mortar for dry paving of ceramic tiles is prepared by stirring the following raw materials in parts by weight: 50-80 parts of original or recycled aggregate, 80-100 parts of cement, 50-80 parts of sand and a proper amount of additive. After the dry-paving mortar is used for construction, the phenomena of deformation, hollowing and the like are not easy to occur; the paving speed is high, and the time for waiting for complete drying of the ground is saved; the operation is easy, and the paving process is simpler; as no wet material exists, the position and the precision of the ceramic tile are easier to control; due to the fact that dry glue is used for dry laying, the ceramic tiles are firmer after being laid and are not prone to sliding.

Description

Technical Field

[0001] The invention relates to the technical field of building construction, and in particular to a special mortar for dry-laying ceramic tiles and a construction method thereof. Background Art

[0002] Cement mortar is a very hard, brittle and inflexible material. In many modern building construction projects, the mortar must be modified with polymers to meet construction requirements.

[0003] However, the existing dry-laid mortar for ceramic tiles is prone to deformation and hollowing; the paving process is difficult to operate and slow; and it is not slip-resistant. Summary of the invention

[0004] The purpose of the present invention is to provide a special mortar for dry laying of ceramic tiles and a construction method thereof, so as to solve the above-mentioned technical problems.

[0005] To achieve the above purpose, the present invention adopts the following technical solutions: A special mortar for dry laying of ceramic tiles is prepared by mixing the following raw materials in parts by weight: 50-80 parts of primary or recycled aggregate, 80-100 parts of cement, 50-80 parts of sand and a proper amount of admixture.

[0006] A special mortar for dry laying of ceramic tiles, wherein the admixture comprises, by weight, 0.1-0.3 parts of a hydrophobic agent, 0.1-0.3 parts of a redispersible latex powder, 0.1-0.3 parts of methyl cellulose ether, 0.1-0.2 parts of an air entraining agent, and 0.1-0.2 parts of a defoaming agent.

[0007] A construction method for special mortar for dry laying of ceramic tiles comprises the following steps: Step 1: First, sprinkle water on the ground to prevent the dry ground from absorbing the water in the mortar too quickly, causing hollow tiles; Step 2: Add appropriate amount of water to the mortar and mix it. Hold it in your hand and make it into a ball. The standard is to spread it flat with a thickness of 3-5cm. Use a template to compact it. The back of the tile must be covered with cement paste. Use a toothed scraper to evenly apply the mortar on the bonding surface of the tile. Press the tile on the semi-dry mortar and tap it gently with a rubber hammer to adjust the level and align and compact it. Step 3. After the tiles are laid, clean the cement in the gaps between the tiles, otherwise it will be difficult to clean during the caulking. It is not recommended to step on the newly laid floor tiles within 24 hours, because the cement mortar of the newly laid floor tiles has not dried yet and cannot fix the position of the tiles, which will cause the tiles to shift and affect the appearance.

[0008] The beneficial effects of the present invention are: after the dry-laying mortar of the present invention is used for construction, deformation, hollowing and the like are not likely to occur; the paving speed is fast, saving the time of waiting for the ground to completely dry; it is easy to operate, and the paving process is simpler; because there is no wet material, it is easier to control the position and accuracy of the tiles; anti-slip: because dry-laying uses dry glue, the tiles are more firm after paving and are not prone to slip. DETAILED DESCRIPTION

[0009] The technical solutions in the embodiments of the present invention are described clearly and completely below. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0010] A special mortar for dry laying of ceramic tiles is prepared by mixing the following raw materials in parts by weight: 50-80 parts of primary or recycled aggregate, 80-100 parts of cement, 50-80 parts of sand and a proper amount of admixture.

[0011] The additives include 0.1-0.3 parts of hydrophobic agent, 0.1-0.3 parts of redispersible latex powder, 0.1-0.3 parts of methyl cellulose ether, 0.1-0.2 parts of air entraining agent and 0.1-0.2 parts of defoaming agent in parts by weight.

[0012] Redispersible latex powder, enhances the bond strength to all substrates, especially non-porous substrates and large-sized tiles. Methyl cellulose ether, as a thickener, retains moisture in the mortar and gives the mortar good workability. Air entraining agent: introduces microbubbles into the mortar through physical action to reduce the mortar density. Defoaming agent: mainly used to reduce the air content in the mortar. Hydrophobic agent (waterproofing agent: prevents water from penetrating into the mortar, while the mortar remains open for water vapor diffusion. Mainly uses hydrophobic polymer redispersible powder, the characteristic is that it will not be washed away from the mortar by rainwater after many years, so it has the advantage of significantly extending the service life and improving the adhesion between the hardened mortar and the substrate.

[0013] A construction method for special mortar for dry laying of ceramic tiles comprises the following steps: Step 1: First, sprinkle water on the ground to prevent the dry ground from absorbing the water in the mortar too quickly, causing hollow tiles; Step 2: Add appropriate amount of water to the mortar and mix it. Hold it in your hand and make it into a ball. The standard is to spread it flat with a thickness of 3-5cm. Use a template to compact it. The back of the tile must be covered with cement paste. Use a toothed scraper to evenly apply the mortar on the bonding surface of the tile. Press the tile on the semi-dry mortar and tap it gently with a rubber hammer to adjust the level and align and compact it. Step 3. After the tiles are laid, clean the cement in the gaps between the tiles, otherwise it will be difficult to clean during the caulking. It is not recommended to step on the newly laid floor tiles within 24 hours, because the cement mortar of the newly laid floor tiles has not dried yet and cannot fix the position of the tiles, which will cause the tiles to shift and affect the appearance.

[0014] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A special mortar for dry laying of tiles, characterized in that: It is made by mixing the following raw materials in parts by weight: 50-80 parts of primary or recycled aggregate, 80-100 parts of cement, 50-80 parts of sand and appropriate amount of admixture.

2. A special mortar for dry laying of tiles as claimed in claim 1, characterized in that: The additives include 0.1-0.3 parts of hydrophobic agent, 0.1-0.3 parts of redispersible latex powder, 0.1-0.3 parts of methyl cellulose ether, 0.1-0.2 parts of air entraining agent and 0.1-0.2 parts of defoaming agent in parts by weight.

3. A construction method for the special mortar for dry laying of tiles as claimed in any one of claims 1-2, characterized in that: The steps include: Step 1: First, sprinkle water on the ground to prevent the dry ground from absorbing the water in the mortar too quickly, causing the tiles to hollow out; Step 2: Add appropriate amount of water to the mortar and mix it. Hold it in your hand and make it into a ball. The standard is to spread it flat with a thickness of 3-5cm. Use a template to compact it. The back of the tile must be covered with cement paste. Use a toothed scraper to evenly apply the mortar on the bonding surface of the tile. Press the tile on the semi-dry mortar and tap it gently with a rubber hammer to adjust the level and align and compact it. Step 3. After the tiles are laid, clean the cement in the gaps between the tiles, otherwise it will be difficult to clean during caulking. Do not step on the newly laid tiles within 24 hours.