Cement-based shrinkage-free joint filling sealing mortar for doors and windows and preparation method and construction method thereof

A construction method and cement-based technology, applied in the direction of frame fixing, etc., can solve the problems of poor water resistance, complex construction process, easy shrinkage and cracking, etc., and achieve the effects of long operation time, improved construction efficiency, and fast and efficient construction.

Active Publication Date: 2013-06-12
TONGJI UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the poor cohesive force and deformation ability of ordinary cement mortar, it is easy to shrink and crack, and it is prone to leakage; it is sealed with materials such as glass fiber, rock wool, and wool strips, and the construction process is complicated. There is no adhesion between such materials and the door and window frames. Sealing force, sealing, and waterproof effect are poor; sealing materials such as silicone rubber and polysulfide rubber have good bonding force, and the construction is relatively convenient, but they are generally limited to surface sealing, not only have low strength, poor ductility, and are not Anti-aging, easy to peel off, high cost
Polyur

Method used

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  • Cement-based shrinkage-free joint filling sealing mortar for doors and windows and preparation method and construction method thereof
  • Cement-based shrinkage-free joint filling sealing mortar for doors and windows and preparation method and construction method thereof
  • Cement-based shrinkage-free joint filling sealing mortar for doors and windows and preparation method and construction method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0044]

[0045] Preparation method: Weigh various raw materials according to the formula, add aggregate (quartz sand, expanded perlite), cement (slag portland cement), active admixture (fly ash), water reducer ( Naphthalene-based high-efficiency water reducer), early strength agent (anhydrous sodium sulfate), coagulation regulator (sodium gluconate), expansion agent (UEA expansion agent), binder (vinyl acetate, acrylate and higher fatty acid vinyl ester Ternary copolymer rubber powder), plastic retaining agent (lignocellulose), water-repellent agent (silicone powder), starch ether, fully stirred evenly, and packaged to form a product.

[0046] The construction method is as follows:

[0047] ① Weigh the sealing material as needed, and add water to the cement-based sealing material according to the ratio requirements, and the amount of water added is 20% of the weight of the dry powder of the sealing mortar. Use a hand-held mixer to stir for 3-5 minutes to prepare a uniform ...

Embodiment 2

[0055]

[0056] Preparation method: Weigh various raw materials according to the formula, and add aggregate (quartz sand, pottery sand), cement (P.O 42.5 ordinary Portland cement), active admixture (slag powder), water reducer ( Naphthalene superplasticizer), early strength agent (calcium formate), expansion agent (ZY expansion agent), binder (polyvinyl alcohol), air-entraining agent (triterpene saponins), plastic retainer (methyl cellulose , bentonite), water repellent (organic silicon powder), modified starch ether, fully stirred evenly, and packaged to form a product.

[0057] The construction method is as follows:

[0058] ① Weigh the sealing material as needed, and add water to the cement-based sealing material according to the ratio requirements, and the amount of water added is 17% of the weight of the dry powder of the sealing mortar. Use a hand-held mixer to stir for 3-5 minutes to prepare a uniform sealing mortar slurry.

[0059] ②Insert the head of the special ...

Embodiment 3

[0066]

[0067]

[0068] Preparation method: Weigh various raw materials according to the formula, add aggregate (quartz sand), powder filler (talc powder), cement (P.II52.5 Portland cement), active admixture (slag powder , silica fume), water reducer (sodium lignosulfonate), early strength agent (sodium metasilicate), expansion agent (UEA expansion agent), binder (terpolymerization of ethylene, vinyl chloride and vinyl laurate) Rubber powder), air-entraining agent (sodium lauryl sulfate), plastic retaining agent (hydroxyethyl cellulose ether, diatomaceous earth), water-repellent agent (calcium stearate), starch ether, fully stir evenly, pack Form a product.

[0069] The construction method is as follows:

[0070] ① Weigh the sealing material as needed, and add water to the cement-based sealing material according to the ratio requirements, and the amount of water added is 15% of the weight of the dry powder of the sealing mortar. Use a hand-held mixer to stir for 3-5 m...

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Abstract

The invention relates to a cement-based shrinkage-free joint filling sealing mortar for doors and windows and a preparation method and a construction method thereof. The sealing mortar is prepared by the components in parts by weight as follows: 100 parts of cement, 0-80 parts of active admixture, 0.01-10 parts of water reducer, 0.01-10 parts of early strength agent, 0.01-10 parts of thickening time control agent, 0-25 parts of expanding agent, 0-30 parts of binder, 0-10 parts of air entraining agent, 0.01-30 parts of plastic retaining agent, 0.01-10 parts of moisture repellent, 0-5 parts of starch ether, 0-150 parts of powder filler and 0-300 parts of aggregate. Compared with the prior art, the mortar provided by the invention has the advantages of no shrinkage, strong binding power, no falling, good anti-permeability, simpleness in construction, efficiency and the like, and can adequately fill joints of doors and windows to ensure the sealing property around the doors and windows, and water is prevented from being seeped into the doors and windows.

Description

technical field [0001] The invention belongs to the technical field of building materials and building construction, and in particular relates to a cement-based non-shrinkage door and window joint sealing mortar and a preparation method and a construction method thereof. Background technique [0002] Leakage of doors and windows, as a common quality problem in construction projects, has always been one of the quality problems that affect the use of construction projects, cause complaints from owners, and have a high repair rate. The selection and quality of caulking and sealing materials is one of the most important factors affecting the quality of doors and windows engineering. The most commonly used caulking materials in the installation of doors and windows are cement mortar, glass fiber, rock wool, wool tops, silicone glue, polysulfide sealing materials, polyurethane sealing materials, etc. Due to the poor cohesive force and deformation ability of ordinary cement mortar...

Claims

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Application Information

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IPC IPC(8): C04B28/00C04B28/08C04B28/04C04B28/06E06B1/58
Inventor 杨钱荣
Owner TONGJI UNIV
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