A kind of oil shale semi-coke adsorption inhibitor and its application in concrete preparation

Abstract

The invention discloses an oil shale semi-coke adsorption inhibitor and its application in concrete preparation. In parts by weight, the adsorption inhibitor is 50-52.5 parts of anti-corrosion rheological agent, 5-20 parts of methanol , 0.5-2 parts of sulfonated melamine, 2-5 parts of EDTA, 20-30 parts of organosilicon compound, 5-10 parts of stearate are added in the mixing container successively, fully stirred evenly gained; the anti-corrosion rheology agent is "Micro-beads" water-reducing active micro-aggregate. The present invention not only solves the problems of strong water absorption of oil shale semi-coke, high adsorption water reducer, etc., but also reduces the water reducer in concrete production by adding adsorption inhibitors to industrial solid waste oil shale semi-coke powder. The amount of the concrete obtained has good workability and workability, and because it has a certain dispersion and grinding effect, it can reduce the power consumption during grinding, and finally realize the large amount of oil shale semi-coke in cement-based concrete. Realize the high-value utilization of oil shale semi-coke resources.

Description

technical field [0001] The invention relates to the technical field of industrial solid waste utilization, in particular to the resource utilization technology of oil shale semi-coke as a concrete material, specifically an adsorption inhibitor of oil shale semi-coke, and the invention also relates to the use of the adsorption inhibitor in concrete application in preparation. Background technique [0002] Oil shale, also known as oil shale, is a high-ash sedimentary rock containing combustible organic matter. Like coal, oil, and natural gas, it belongs to fossil fuels and is a non-renewable resource and a primary energy source. Oil shale will produce a large amount of by-product waste in the dry distillation process, that is, oil shale semi-coke, which is a low-quality fuel with high ash content and low calorific value, and contains toxic pollution such as water-soluble phenols, sulfides, and polycyclic aromatic hydrocarbons. If not handled properly, it will cause serious ha...

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Problems solved by technology

[0003] At present, most of the oil shale semi-coke is stacked at home and abroad, which not only occupies a large amount of available arable land, but also pollutes water resources, deteriorates water quality, and causes waste of resources

As an additional product of oil shale, oil shale semi-coke is also often used as concrete material for construction. However, in practical applications, it is found that oil shale semi-coke powder is loose and porous and has strong water absorption. The superplasticizer added in the concrete preparation process has strong adsorption, which not only increases the dosage of the superplasticizer, but also deteriorates the workability and workability of the concrete, which in turn affects the on-site pouring construction, which greatly Limit resource utilization of oil shale semi-coke

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