Polypropylene fiber dry-mixed mortar for construction of outer wall

A technology of polypropylene fiber and dry powder mortar, which is applied in the field of building materials for exterior wall construction, to achieve the effects of reducing window seam leakage, easy dusting, and easy operation

Inactive Publication Date: 2013-01-23
CHINA CONSTR FOURTH ENG DIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In order to solve the quality problems such as voids, drums, s

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0025] Example 1. Polypropylene fiber dry powder mortar for exterior wall construction. Mix 1 part of ordinary Portland cement with strength grade of 32.5, 5.31 parts of fine sand, 0.61 parts of secondary fly ash, 0.21 parts of thickening powder and 1.33 parts of water. Dry powder mortar: Add 0.9Kg of polypropylene fiber per cubic meter of dry powder mortar, and stir for 3 minutes with a mixer to form the polypropylene fiber dry powder mortar for exterior wall construction of the present invention.

Example Embodiment

[0026] Example 2. Polypropylene fiber dry mortar for exterior wall construction. Mix 0.8 parts of ordinary Portland cement with strength grade of 32.5, 5 parts of fine sand, 0.4 parts of secondary fly ash, 0.1 part of thickening powder and 1 part of water. Dry powder mortar: 0.8Kg of polypropylene fiber is mixed into each cubic meter of dry powder mortar, and stirred with a mixer for 2 minutes to form the polypropylene fiber dry powder mortar for exterior wall construction of the present invention.

Example Embodiment

[0027] Example 3. Polypropylene fiber dry powder mortar for exterior wall construction. Mix 1.2 parts of ordinary Portland cement with a strength grade of 32.5, 6 parts of fine sand, 0.8 parts of secondary fly ash, 0.3 parts of thickening powder and 1 part of water. Dry powder mortar: 1Kg polypropylene fiber is mixed into each cubic meter of dry powder mortar and stirred with a mixer for 4 minutes to form the polypropylene fiber dry powder mortar for exterior wall construction of the present invention.

[0028] The polypropylene fiber in the above embodiment is a high-strength polypropylene bundled monofilament fiber processed with 100% PP raw glue.

[0029] The physical parameters of the polypropylene fiber used in the present invention are shown in Table 1.

[0030] Table 1:

[0031] Material Polypropylene fibers proportion 0.91kg / m3 Exterior White monofilament Melting point160-175℃ Burning point ≥580℃ Acid and alkali resistance Extremely strong tensile strength ≥633Mpa...

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PUM

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Abstract

The invention discloses polypropylene fiber dry-mixed mortar for the construction of an outer wall. The dry-mixed mortar comprises 0.8 to 1.2 weight parts of cement, 5 to 6 weight parts of fine sand, 0.4 to 0.8 weight part of addition, 0.1 to 0.3 weight part of admixture, 1 to 1.5 weight parts of water; and 0.8 to 1 kilogram of polypropylene fiber is doped into per cubic meter of the dry-mixed mortar, and the mixture is stirred for 2 to 4 minutes. By the polypropylene fiber dry-mixed mortar for the construction of the outer wall, the integrity, the flexibility, the continuity and the durability can be improved substantially. The polypropylene fiber dry-mixed mortar has high comprehensive performance such as crack resistance, permeability resistance, shock resistance, seismic resistance, freezing resistance, erosion and abrasion resistance, burst resistance, workability and water retention. The polypropylene fiber dry-mixed mortar is easily, conveniently and quickly constructed, is easy to operate and is suitable for plastering construction of all the outer walls.

Description

technical field [0001] The invention relates to a polypropylene fiber dry powder mortar for exterior wall construction, and belongs to the technical field of building materials for exterior wall construction. Background technique [0002] At present, with the continuation of the use time, the plaster layer of the external wall of the building usually has a series of quality problems such as emptying, swelling, seepage, leakage, and cracking. Especially as the outer wall of the enclosure structure, when lightweight walls such as concrete hollow blocks and aerated concrete are mostly used, due to factors such as large shrinkage changes, large water absorption, and low surface strength of these lightweight materials, the outer wall Plastering causes unfavorable factors, and it is more prone to and serious quality problems such as emptying, bulging, seepage, leakage, and cracking. How to eliminate such quality problems has increasingly attracted people's attention. Contents o...

Claims

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Application Information

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IPC IPC(8): C04B28/04C04B16/06
Inventor 陈少波曹诚赵军
Owner CHINA CONSTR FOURTH ENG DIV
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