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Modified glutinous-rice mortar for masonry and preparation method thereof

A glutinous rice mortar and modification technology, applied in the field of building materials, can solve the problems of complex preparation process, low strength, large shrinkage, etc., and achieve the effects of simplifying the preparation process, reducing the shrinkage rate, and reducing the water demand

Active Publication Date: 2015-03-11
ZHEJIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0012] The invention provides a modified glutinous rice mortar for masonry and a preparation method thereof. The glutinous rice mortar solves the problems of traditional glutinous rice mortar preparation process complexity, slow curing, large shrinkage and low strength, and provides a tool for the protection and maintenance of cultural relics. A new type of masonry or intercalation material

Method used

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  • Modified glutinous-rice mortar for masonry and preparation method thereof
  • Modified glutinous-rice mortar for masonry and preparation method thereof
  • Modified glutinous-rice mortar for masonry and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] 1. Preparation of glutinous rice mortar

[0034] Weigh 100 parts with a purity of 95% and an apparent density of 0.72g / cm 3 , The specific surface area is 10.68m 2 / g of calcium hydroxide, 75 parts of calcium carbonate with a particle size of 0.6-1 mm, 225 parts of calcium carbonate with a particle size of 0.3-0.6 mm, 225 parts of calcium carbonate with a particle size of 0.18-0.3 mm, 5 parts of amylopectin The content is 92%, the apparent density is 0.17g / cm 3 Pregelatinized glutinous rice flour, 1 part of French Eisen C-SP polycarboxylate superplasticizer and 1 part of hydroxypropyl methylcellulose with a viscosity of 150,000mPa·s, mixed the dry material at a stirring speed of 500rpm for 5min, and added 95 After dividing the water, stir at a speed of 1500 rpm for 8 minutes until the mortar is evenly mixed to obtain glutinous rice mortar.

[0035] 2. Inspection of the performance of glutinous rice mortar

[0036] Pour the mortar into the test mold, and after castin...

Embodiment 2

[0042] 1. Preparation of glutinous rice mortar

[0043] Weigh 100 parts with a purity of 95% and an apparent density of 0.72g / cm 3 , The specific surface area is 10.68m 2 / g of calcium hydroxide, 75 parts of calcium carbonate with a particle size of 0.6 to 1 mm, 225 parts of calcium carbonate with a particle size of 0.3 to 0.6 mm, 225 parts of calcium carbonate with a particle size of 0.18 to 0.3 mm, and 75 parts with a particle size of Calcium carbonate of 0.125~0.18mm, 5 parts of amylopectin content of 92%, apparent density of 0.17g / cm 3 Pre-gelatinized glutinous rice flour, 1 part of French Eisen C-SP polycarboxylate superplasticizer and 1 part of hydroxypropyl methylcellulose with a viscosity of 150,000mPa·s, mixed the dry material at a stirring speed of 500rpm for 5min, and added 106 After dividing the water, stir at a speed of 1500 rpm for 8 minutes until the mortar is evenly mixed to obtain glutinous rice mortar.

[0044] 2. Inspection of the performance of glutinous...

Embodiment 3

[0051] 1. Preparation of glutinous rice mortar

[0052] Weigh 100 parts with a purity of 95% and an apparent density of 0.72g / cm 3 , The specific surface area is 10.68m 2 / g of calcium hydroxide, 37.5 parts of calcium carbonate with a particle size of 0.6 to 1 mm, 112.5 parts of calcium carbonate with a particle size of 0.3 to 0.6 mm, 112.5 parts of calcium carbonate with a particle size of 0.18 to 0.3 mm, and 37.5 parts with a particle size of Calcium carbonate of 0.125~0.18mm, 5 parts of amylopectin content of 92%, apparent density of 0.17g / cm 3 Pre-gelatinized glutinous rice flour, 1 part of French Eisen C-SP polycarboxylate superplasticizer and 1 part of hydroxypropyl methylcellulose with a viscosity of 150,000mPa·s, mixed the dry material at a stirring speed of 500rpm for 5min, and added 81.5 After dividing the water, stir at a speed of 1500 rpm for 8 minutes until the mortar is evenly mixed to obtain glutinous rice mortar.

[0053] 2. Inspection of the performance of ...

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Abstract

The invention discloses modified glutinous-rice mortar for masonry and a preparation method thereof. The glutinous-rice mortar comprises the raw materials in parts by weight: 100 parts of calcium hydroxide powder, 300-600 parts of calcium carbonate particle, 3-12 parts of pre-gelatinized glutinous rice, 0.5-1.5 parts of a water reducer, 0.5-1.5 parts of cellulose, and 80-120 parts of water. The above modified glutinous-rice mortar for masonry solves the problems that conventional glutinous-rice mortar is complex in preparation technology, slow in curing, large in shrinkage and relatively low in strength, and provides a novel masonry or embedding material for protection and maintenance of cultural relics.

Description

technical field [0001] The invention relates to the technical field of building materials, in particular to a modified glutinous rice mortar for masonry and a preparation method thereof. Background technique [0002] UNESCO lists writing, architecture and weapons as the three basic elements of the development of human civilization history, and the development of architectural technology mainly revolves around the progress and transformation of materials, structures, construction and other aspects. [0003] In order to stabilize the brick walls and connect them into a whole, the ancient working people, in addition to improving the reasonable overlapping of bricks, initially used mud pads to flatten the joints of bricks. Until the Song and Yuan dynasties, all kinds of brick walls were still widely used. In the Eastern Han Dynasty, lime mortar was used as a binder. It was not until the Song Dynasty that lime was more commonly used. In the Ming Dynasty, lime mortar was more wide...

Claims

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Application Information

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IPC IPC(8): C04B28/12C04B14/28C04B24/38
Inventor 杨涛张秉坚
Owner ZHEJIANG UNIV
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