Alkali-activated clinker-free refractory self-leveling concrete and preparation method thereof

Abstract

Alkali-activated clinker-free refractory self-leveling concrete is prepared from the following components in parts by mass: 225 to 550 parts of cementing material, 10 to 20 parts of alkali activator, 1000 to 1200 parts of coarse aggregate, 800 to 1100 parts of fine aggregate, 150 to 200 parts of water and 0.2 to 0.5 part of additive. The invention further comprises a preparation method of the concrete. The preparation method comprises the following steps: 1, crushing the steel slag, the waste glass and the phosphorus slag; 2, grinding the copper tailings to obtain coarse aggregate and fine aggregate; 3, grinding the crushed material in the step 1; and 4, adding an alkali activator, water, an additive, coarse aggregate and fine aggregate into the grinding material obtained in the step 3, and mixing and stirring to obtain the clinker-free refractory self-leveling concrete. According to the invention, solid wastes are fully utilized, the use of cement clinker is avoided, and the efficient utilization of solid waste resources is realized.

Description

technical field [0001] The invention belongs to the technical field of building materials, in particular to an alkali-activated clinker-free refractory self-leveling concrete for planting roofing systems and a preparation method thereof Background technique [0002] With the continuous development of human beings and the increasing consumption and destruction of global energy and the environment, in the field of construction, in order to reduce building energy consumption and achieve a higher quality living environment, a new green planting roof construction strategy has been proposed. This kind of planted roof can not only keep heat and insulate, and alleviate the greenhouse effect; it can also protect the roof structure of the building and prolong the service life of the building. However, there is a big defect in the green planting roof, that is, how to prevent the puncture damage caused by the growth of plant roots. Existing root-blocking techniques are generally divide...

AI Technical Summary

Problems solved by technology

However, the technical requirements for the preparation of self-leveling concrete are relatively high, more materials are consumed, and the cost of raw materials is increased, resulting in a gradual increase in cost. The extensive use of cement clinker will also cause greater pollution to the environment.

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