Preparation method of ecological embankment type porous concrete special for plant growing

Abstract

The invention discloses a preparation method of ecological embankment type porous concrete special for plant growing. The preparation method comprises the following steps of: adding premixing water into crushed stones and stirring to ensure that the surfaces of the crushed stones are moistened; adding cement and mineral waste residues or fly ash, and stirring the mixture for 15 to 45 seconds to ensure that a layer of cement grout shell is wrapped on the surfaces of the crushed stones; adding remaining mixing water for stirring, and continuously stirring the mixture for 1 to 10 minutes to obtain a mixed material, wherein the ratio of the water to the cement to the crushed stones is (0.29-0.39):1:(4-7), the used amount of the mineral waste residues or the fly ash is 10 to 30 percent of that of the weight of the cement; performing layer-by-layer pressing and gentle oscillation for moulding; and finally, covering the mixture by using a plastic film, and maintaining the mixture under a natural condition to obtain the ecological embankment type porous concrete. The materials adopted by the method are common, have wide sources and are simple in manufacturing; and the prepared porous concrete has high strength and high porosity, can be made into any shape as required, and can be applied to vegetation slope protections of roads and rivers as a base material for vegetation growth.

Description

technical field [0001] The invention relates to the fields of water conservancy, environment and ecological restoration engineering, in particular to a preparation method of ecological protective masonry-type porous concrete specially used for vegetation, which is suitable for protecting and greening river embankments and river and lake embankments. Background technique [0002] Greening people's living environment has been paid more and more attention by people, especially after the concrete structure has become the dominant structure of urban construction, in order to better green the urban environment, concrete structures have become a new field of environmental greening technology. [0003] In recent years, one of the most eye-catching concrete technologies is being promoted, which is a kind of vegetative concrete that is structurally conducive to plant growth. Vegetative concrete was first successfully developed by Japan's Taisei Construction Technology Research Institu...

AI Technical Summary

Problems solved by technology

The existing production technology tends to cause the slurry to flow down, cannot form uniform pores and easily seals the bottom pores

At the same time, due to the high alkalinity inside the porous concrete, it cannot meet the requirements of plant growth.

In addition, the geographical restrictions of plants, the calculation of the amount of raw materials is complex and inaccurate, and the complicated and cumbersome production process is also an important reason hindering the popularization and application of porous concrete.

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