Modified high carbon ferro-chrome slag aggregate for road concrete and preparation method of modified high carbon ferro-chrome slag aggregate

A high-carbon ferrochromium, concrete technology, applied in the direction of climate sustainability, sustainable waste treatment, solid waste management, etc., can solve the problem that no high-carbon ferrochromium slag aggregate has been effectively used in road concrete, concrete and workability. It can reduce the problems of aggregate crushing value and poor volume stability of concrete, so as to achieve the effect of reducing poor volume stability, reducing interfacial tension and surface free energy, and improving applicability and safety.
CN103073210BActive Publication Date: 2014-06-18李素娥
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
李素娥
Publication Date
2014-06-18

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Abstract

The invention discloses a modified high carbon ferro-chrome slag aggregate for road concrete and a preparation method of the modified high carbon ferro-chrome slag aggregate. The modified high carbon ferro-chrome slag aggregate is characterized by being prepared from a high carbon ferro-chrome alloy slag aggregate and a chemical modifying agent accounting for 2-6 percent of the mass of the high carbon ferro-chrome alloy slag aggregate through mixing, wherein the chemical modifying agent is prepared from 100 parts by mass of polymer diluting solution, 0.5-1.2 parts by mass of organic silicon waterproof defoaming agent, 0.2-0.5 part by mass of polyvinyl alcohol and 2-4 parts by mass of zeolite powder through uniform mixing; the polymer diluting solution is prepared by diluting a polymer emulsion stock solution through adding water; and the polymer emulsion stock solution is any one of a butylbenzene emulsion, a polyacrylate emulsion, a polyethylene-vinyl acetate emulsion and a styrene-acrylic emulsion. By adopting the invention, waste alloy waste is used as a raw material, and thus building materials of carbon chromic slag can be recycled and efficiently utilized, and the defects and the hidden dangers of the carbon chromic slag as the concrete aggregate are solved; and the preparation method is simple and easy to realize and is strong in practicability.
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Description

technical field

[0001] The invention belongs to the utilization of solid waste-industrial waste residue, and relates to a modified high-carbon ferrochromium slag aggregate for road concrete and a preparation method thereof. The modified high-carbon ferrochromium slag aggregate obtained by the invention is especially suitable for road concrete, and also suitable for concrete of various common construction and civil engineering. Background technique

[0002] In the prior art, there are few types of concrete aggregates suitable for road engineering, and natural high-quality basalt and limestone are generally used. As natural aggregate is a non-renewable resource, the decline in raw material reserves and the continuous increase in demand will inevitably bring about contradictions between supply and demand, especially for high-performance aggregates. Therefore, it is necessary to find new concrete aggregates through appropriate theoretical innovations and technical means, and to...

Claims

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