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Premixed mortar and application thereof

A technology of ready-mixed mortar and recycled aggregate, which is applied in the field of ready-mixed mortar, can solve problems such as not being well recognized, and achieve the effect of resource utilization

Inactive Publication Date: 2021-10-29
BCEG RESOURCES RECYCLING CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Construction waste mainly composed of red bricks is the main composition of construction waste at present, but the application of recycled aggregates from construction waste dominated by red bricks has not been well recognized. How to realize the application of recycled aggregates from red bricks , which is the focus of resource utilization of construction waste

Method used

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  • Premixed mortar and application thereof
  • Premixed mortar and application thereof
  • Premixed mortar and application thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0024] The premisted mortar in this embodiment includes a material and auxiliary material, wherein the material comprises the following material by weight fraction: 14% of silicate cement, 16% of secondary fly ash, concrete regeneration aggregate and red brick regeneration The total amount of aggregate, concrete regenerated aggregate and red brick regenerated aggregate was 70%, and the regenerated aggregate particle diameter was 5 to 10 mm. According to the total weight fraction of the ready-mixed mortar, the excipient comprises: 0.02% water storage agent, 0.025% water reduction agent, 0.01% polyvinyl alcohol, and the regenerated aggregate is prepared by high temperature calcination cooling, the high temperature. The calcination temperature was 1330 ° C, and the calcination time was 80 min.

Embodiment 2

[0026] The premisted mortar in this embodiment includes a material and auxiliary material, wherein the material comprises the following materials by weight fraction: silicate cement is 15%, secondary fly ash 17%, concrete regeneration aggregate and red bricks Regenerated aggregate, concrete regenerated aggregate and red brick regenerated aggregate aggregate amount of 68%, the regenerated aggregate particle diameter of 5 to 10 mm. According to the total weight fraction of the ready-mixed mortar, the excipient comprises: 0.02% water storage agent, 0.025% water reduction agent, 0.01% polyvinyl alcohol, and the regenerated aggregate is prepared by high temperature calcination cooling, the high temperature. The calcination temperature was 1330 ° C, and the calcination time was 80 min.

Embodiment 3

[0028] The premisted mortar in this embodiment includes a material and auxiliary material, wherein the material comprises the following material by weight fraction: silicate cement is 17%, secondary fly ash 12%, concrete regeneration aggregate and red bricks Regenerated aggregate, concrete regenerated aggregate and red brick regenerated aggregate aggregate aggregate, the regenerated aggregate particle diameter of 5 to 10 mm. According to the total weight fraction of the ready-mixed mortar, the excipient comprises: 0.02% water storage agent, 0.025% water reduction agent, 0.01% polyvinyl alcohol, and the regenerated aggregate is prepared by high temperature calcination cooling, the high temperature. The calcination temperature was 1330 ° C, and the calcination time was 80 min.

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Abstract

The invention relates to a premixed mortar. The premixed mortar comprises main materials and auxiliary materials, and the main materials comprise, by weight, 12-17% of a cementing material, 12-17% of a doping material and 68-71% of recycled aggregate; the auxiliary materials comprise 0.02% of a water-retaining agent, 0.025% of a water reducing agent and 0.01% of polyvinyl alcohol according to the total weight fraction of the ready-mixed mortar; and the cementing material is slag Portland cement and / or Portland cement, the recycled aggregate is one or two of concrete recycled aggregate and red brick recycled aggregate, the doping material is secondary fly ash, the particle size of the recycled aggregate is 0-10 mm, the recycled aggregate is subjected to high-temperature calcination and cooling before being prepared into the ready-mixed mortar, the high-temperature calcination temperature is 1330 DEG C, and and the calcination time is 80 minutes. According to the premixed mortar disclosed by the invention, the recycled concrete is fully utilized as the aggregate, and the red brick recycled aggregate is also utilized, so that a recycling way is found for a large amount of red brick construction waste.

Description

Technical field [0001] The present invention relates to the technical field of civil engineering materials, in particular, to a ready-mixed mortar and its application thereof. Background technique [0002] The premixed mortar is used as a powder-shaped mixed material, and the premixed mortar is generally non-loaded material in the building. The intensity requirement is low, and the util of building waste regeneration aggregate in the ready-mixed mortar is not only effective to save resources, protect the environment. And you can achieve sustainable development of society. [0003] The main components of construction waste are concrete, brick tiles, mortar, and wood chips, plastic, foam and other impurities. There are significant differences in the performance of concrete, red bricks and mortar. The concrete strength is high, and there is a large particle size aggregate such as stone and pebbles. After pumping, vibration, etc., the finished product is relatively comparable, after ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B28/04C04B103/46C04B103/30
CPCC04B28/04C04B2201/50C04B2111/00017C04B2103/465C04B18/08C04B18/16C04B20/0076C04B24/383C04B2103/302C04B24/2623
Inventor 王淼李岩凌刘文才何强周伟陈向杰
Owner BCEG RESOURCES RECYCLING CO LTD
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