Towel-gourd fiber toughening anticracking mortar, preparation method and application

A loofah fiber and mortar technology, which is applied in the field of building materials, can solve problems such as seldom considering sustainable development, and achieve the effects of inhibiting segregation tendency, reducing drying shrinkage, and improving toughness and crack resistance

Active Publication Date: 2014-12-17
NORTH CHINA UNIV OF WATER RESOURCES & ELECTRIC POWER
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, these synthetic fibers are not environmentally friendly, and little consideration is given to their sustainability, such

Method used

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  • Towel-gourd fiber toughening anticracking mortar, preparation method and application
  • Towel-gourd fiber toughening anticracking mortar, preparation method and application
  • Towel-gourd fiber toughening anticracking mortar, preparation method and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] A loofah fiber toughened anti-cracking mortar, the raw material is 1m 3 The raw materials used for mortar (600kg cement, 900kg sand, 300kg glass-ceramic, 360kg brucite, 180kg expanded perlite, 1.8kg thickener, 300kg water) and 300g loofah fiber.

[0026] During preparation, ① soak 300g of 1-1.5cm loofah fibers in water to absorb the maximum amount of water to become saturated water loofah fibers; ② first add 450kg of sand to 300kg of cement, stir evenly, and slowly disperse saturated water loofah fibers , pay attention not to scatter the saturated water loofah fiber on the inner wall of the stirring container; 3. Add the remaining cement and sand in batches during the process of adding the saturated water loofah fiber, and add glass-ceramic, brucite, expanded perlite, and thickener at the same time. Stir for 3 minutes to disperse the loofah fibers evenly, add 300kg of water, and continue to stir for 3 minutes to further disperse the loofah fibers.

Embodiment 2

[0028] A loofah fiber toughened anti-cracking mortar, the raw material is 1m 3 The water in the raw materials used in the mortar is 480kg and 900g loofah fiber, and the consumption of other raw materials is the same as that of Example 1. The method steps during preparation are the same as those in Example 1.

Embodiment 3

[0030] A loofah fiber toughened anti-cracking mortar, the raw material is 1m 3 The water in the raw materials used in the mortar is 300kg and 500g loofah fiber, and the consumption of other raw materials is the same as that of Example 1. The method steps during preparation are the same as those in Example 1.

[0031] The loofah fiber in Example 1-3 was prepared by the following method: first cut the loofah pulp into loofah segments, tear the loofah segment into single loofah shreds, and cut the loofah shreds into 1-1.5cm lengths.

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Abstract

The invention belongs to the technical field of building materials, and concretely relates to towel-gourd fiber toughening anticracking mortar, preparation method and application. By adding towel-gourd fiber into mortar, the toughness and the anti-cracking performance of the cement mortar are improved, and the drying shrinkage value is reduced. Also the porous and communicated tunnel structure of towel gourd fiber gives play to water-retaining water-storage effects and has the advantage that essential moisture is provided for supplementing early-stage drying shrinkage deformation for the mortar matrix. Also, the mortar is good in effect, low in cost and easily available in raw materials, and also the production technology is simple in technology and easy for popularization enforcement.

Description

technical field [0001] The invention belongs to the technical field of building materials, in particular to the application of a loofah fiber in mortar, and at the same time to a loofah fiber toughened and crack-resistant mortar. Background technique [0002] Construction mortar is generally composed of cement, sand and water. It is a brittle material with high compressive strength, low tensile strength and small ultimate strain, so mortar has poor toughness and is easy to crack. At present, there are many methods to improve the early crack resistance of mortar, and adding synthetic fibers such as PVA, polypropylene fibers, carbon fibers, etc. is a more effective method. However, these synthetic fibers are not environmentally friendly and their sustainability is rarely considered, as the production of PVA and polypropylene fibers requires phenolic compounds as antioxidants and amines as anti-UV stabilizers. Finding new mortars with ideal early crack resistance is the direct...

Claims

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Application Information

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IPC IPC(8): C04B16/02C04B28/00C04B14/22C04B14/18
Inventor 仝玉萍赵顺波陈渊召潘建波邢振贤张旭芳陈希马军涛王磊陈征张亚楠高亚峰张双艳张豪杰
Owner NORTH CHINA UNIV OF WATER RESOURCES & ELECTRIC POWER
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