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Waterproof mortar and preparation method thereof

A waterproof mortar and cement technology, applied in the field of building materials, can solve the problems of downstream residents' life and property hazards, geological disasters, environmental pollution, etc., and achieve the effects of simple raw material formula and production process, reduced preparation cost, and environmental friendliness

Active Publication Date: 2016-08-10
WUHAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

② Causing geological disasters and other problems
The tailings pool contains a large amount of heavy metal ions and chemical agents. Once an accident occurs, it will cause great harm to the lives and properties of downstream residents, and cause serious pollution to the environment; ③ cause a serious waste of resources

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] A kind of waterproof mortar with reverse flotation siliceous tailings as the main raw material and its preparation method, the components and content of the waterproof mortar are: reverse flotation siliceous tailings powder is 50wt%, ordinary portland cement is 50wt%;

[0029] The preparation method of the waterproof mortar is as follows: firstly, according to the ingredients and contents of the above-mentioned raw materials, it is added to a planetary mixer and stirred for 3-10 minutes, so that the raw materials are fully mixed; Stir for 1-4min under the conditions of ±5r / min, revolution 62±5r / min, stir for 0.5-2min under the conditions of stirring blade rotation 258±10r / min, revolution 125±10r / min, then install the mold and put it on the plastic sand vibrating table Vibrate for 2 to 5 minutes to form; place at room temperature for 12 to 48 hours and then demould. After demoulding, perform curing (temperature 20±3°C, relative humidity above 90%) to obtain waterproof mo...

Embodiment 2

[0033] A waterproof mortar with reverse flotation siliceous tailings as the main raw material and its preparation method, the components and content of the waterproof mortar are: reverse flotation siliceous tailings powder is 66.7wt%, ordinary portland cement is 33.3wt%;

[0034] The preparation method of the waterproof mortar is as follows: first, according to the ingredients and contents of the above raw materials, add them to the planetary mixer and stir for 3 to 10 minutes, so that the raw materials are fully mixed; Stir for 1-4min under the conditions of ±5r / min, revolution 62±5r / min, stir for 0.5-2min under the conditions of stirring blade rotation 258±10r / min, revolution 125±10r / min, then install the mold and put it on the plastic sand vibrating table Vibrate for 2 to 5 minutes to form; place at room temperature for 12 to 48 hours and then demould. After demoulding, perform curing (temperature 20±3°C, relative humidity above 90%) to obtain waterproof mortar products.

...

Embodiment 3

[0038] A kind of waterproof mortar with reverse flotation siliceous tailings as the main raw material and its preparation method, the components and content of the waterproof mortar are: reverse flotation siliceous tailings powder is 75wt%, ordinary Portland cement is 25wt%;

[0039] The preparation method of the waterproof mortar is as follows: first, according to the ingredients and contents of the above-mentioned raw materials, add them into the planetary mixer and stir for 3-10 minutes, so that the raw materials are fully mixed; Stir for 1-4min under the conditions of 5r / min and revolution 62±5r / min, and stir for 0.5-2min under the conditions of stirring blade rotation 258±10r / min and revolution 125±10r / min, then install the mold and put it on the plastic sand vibrating table Vibrate for 2 to 5 minutes to form; place at room temperature for 12 to 48 hours before demoulding. After demoulding, perform curing (temperature 20±3°C, relative humidity above 90%) to obtain waterpr...

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Abstract

The invention belongs to the field of building materials and in particular relates to waterproof mortar with reversely floated siliceous tailings as main raw materials and a preparation method thereof. The preparation method is characterized by firstly mixing 50-75wt% of reversely floated siliceous tailings and 25-50wt% of cement, and adding the raw materials to a planetary stirrer to be stirred to mix the raw materials fully and uniformly; then adding water accounting for 25-33.5wt% of the raw materials, filling the raw materials in a die after stirring by adopting a stirring system and carrying out vibration molding on mortar vibration compaction equipment; and carrying out demolding after placement at room temperature and then carrying out curing, thus preparing the waterproof mortar product. The preparation method has the characteristics of environment friendliness, low production cost, simple raw material formula and production process, a wide range of application, and the like and has the effect of exploring a new method for carrying out high value added utilization on a large quantity of reversely floated siliceous tailings. The prepared cement-based waterproof mortar with the reversely floated siliceous tailings as the main raw materials has good waterproofness and durability.

Description

technical field [0001] The invention belongs to the field of building materials, and in particular relates to a waterproof mortar with reverse flotation siliceous tailings as the main raw material and a preparation method thereof. Background technique [0002] Mineral resources are one of the important material bases for human survival and development. With the development of science and technology and the improvement of productivity, the types and quantities of mineral resources used by human beings are becoming wider and wider. However, with the exploitation of mineral resources, the output of tailings is also increasing. The annual discharge of tailings in the world is more than 10 billion tons, of which the annual discharge of tailings in my country is as high as 1.5 billion tons. The latest statistics show that the cumulative stockpiles of tailings in my country are close to 15 billion tons. A large amount of tailings accumulation will cause many social problems. Sp...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/04C04B28/08C04B18/12
CPCC04B18/12C04B28/04C04B28/08C04B2111/27C04B2201/50Y02W30/91
Inventor 赵云良王伟宋少先刘惠
Owner WUHAN UNIV OF TECH
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