Multifunctional premix mortar thickening material and preparation method thereof

A ready-mixed mortar, multi-functional technology, applied in the field of ready-mixed mortar water-retaining thickening materials

Active Publication Date: 2012-12-26
广东广业检测有限公司 +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] At present, most of the mortar water retention and thickening materials developed in China are compounded with commonly used mortar additives such as cellulose ether, starch ether, polyvinyl alcohol or redispersible latex powder It is prepared and mixed with inorganic powder materials, and does not form a new mortar thickening material
[0004] In addition, when the ready-mixed mortar is required to have other special properties such as waterproof performance, thermal insulation performance, frost resistance and other special properties, it is often necessary to add various Additives, which have correspondingly increased requirements for mortar production equipment and metering conditions, often resulting in increased mortar production costs and difficult quality control

Method used

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  • Multifunctional premix mortar thickening material and preparation method thereof
  • Multifunctional premix mortar thickening material and preparation method thereof

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Experimental program
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Effect test

Embodiment 1

[0039] Table 1 is the raw material formula (parts by mass) for preparing the multifunctional ready-mixed mortar water-retaining thickening material according to the present invention. The bentonite in the raw material is Sihui Feilaifeng 100 type; the SiO of kaolin 2 More than 50%, Al 2 o 3 The content is 12-18%; fly ash is secondary ash; sodium dodecylbenzene sulfonate and sodium lignin sulfonate are chemical reagents; sodium sulfate is industrial grade, Na 2 SO 4 ≥99%; Hybrid modified rubber powder is prepared by the method disclosed in the invention patent "Modified rubber powder nanocomposite with sodium silicate as silicon source and its preparation method" (application number 200710032515.X, publication number CN101220179) That's it.

[0040] The raw material formula (number of parts by mass) of water-retaining thickening material of table 1

[0041] 1# 2# 3# 4# 5# Bentonite 80 80 80 80 80 Kaolin 10 10 10 10 10 fly ash 10 1...

Embodiment 2

[0056] Table 4 is the raw material formula (parts by mass) for preparing the multifunctional ready-mixed mortar water-retaining thickening material according to the present invention. The bentonite in the raw material is Sihui Feilaifeng 100 type; the SiO of kaolin 2 More than 50%, Al 2 o 3 12-18%; fly ash is secondary ash; sodium dodecylbenzene sulfonate and sodium lignosulfonate are chemical pure reagents; sodium sulfate is industrial grade, Na 2 SO 4≥99%; Hybrid modified rubber powder is prepared by the method disclosed in the invention patent "Modified rubber powder nanocomposite material with sodium silicate as silicon source and its preparation method" (application number 200710032515.X, publication number CN101220179) That's it.

[0057] Table 4

[0058] 1# 2# 3# 4# 5# Bentonite 60 70 80 90 90 Kaolin 30 20 10 0 0 fly ash 10 10 10 10 10 Sodium dodecyl benzene sulfonate 0.1 0.1 0.2 0.2 0.2 Sodium lignosulfo...

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Abstract

The invention discloses a multifunctional premix mortar thickening material and a preparation method thereof. The preparation method comprises the following steps: (1) carrying out drying pretreatment on bentonite, kaolin and fly ash; (2) after premixing the bentonite, kaolin and fly ash obtained in the step (1) with surfactant and calcium sulfate, grinding in a grinding machine; and (3) adding hybrid modified rubber powder and the raw material obtained in the step (2) into a mixing machine, and mixing to obtain the multifunctional premix mortar thickening material. By producing the thickening material mainly from inorganic materials by a grinding technique, the invention can ensure the bonding reaction of the inorganic powder materials with the surfactant and modifier, thereby forming a novel organic / inorganic composite mortar additive; and besides, the added nano hybrid modified scrap rubber powder can effectively enhance the water permeation resistance of the mortar, improve the freezing resistance and heat-insulating property of the mortar, and enhance the strength of the mortar.

Description

technical field [0001] The invention relates to the technical field of ready-mixed mortar water-retaining thickening material, in particular to a multifunctional ready-mixed mortar thickening material and a preparation method thereof. Background technique [0002] The water-retaining thickening material for ready-mixed mortar refers to the non-lime powder material used in ready-mixed mortar to improve the operability and water-retaining capacity of the mortar and reduce shrinkage and cracking. At present, the water-retaining thickening material mainly used is mortar thickening powder. Thickening powder endows the dry powder mortar with suitable consistency and water retention, which can prevent the mortar from sedimentation, bleeding and water evaporation before hardening, and can improve the performance of the final hardened slurry of the mortar. Water retention and thickening materials play a key role in the preparation of dry-mixed mortar. [0003] At present, most of t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B22/14
Inventor 于利刚刘岚侯兰辉郑俊生吴锦锋
Owner 广东广业检测有限公司
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