Sound-insulating environment-friendly polypropylene fiber pebble concrete and preparation method thereof

Abstract

The invention discloses a sound-insulating environment-friendly polypropylene fiber pebble concrete and a preparation method thereof. The concrete mainly comprises pebble, a foaming agent, a sound insulation agent, polypropylene fiber, cement, aggregate and a high-efficiency water reducer, wherein the polypropylene fiber mainly comprises a polypropylene raw material, a coupling agent, a dispersant, a fire retardant and a coloring agent. The preparation method comprises the following steps: crushing and drying of the polypropylene resin raw material; mixing of the raw material and various additives; melted extrusion; hot-roller drawing; high-temperature oil bathing; surface treatment; thermal setting; and cooling, cutting and packaging. The polypropylene fiber pebble concrete prepared in the invention has good heat resistance, chemical stability, good sound insulation performance and strong resistance to acid and alkali; the physical and mechanical properties of the polypropylene fiber pebble concrete are greatly improved compared with common concrete; and a building formed by pouring of the polypropylene fiber pebble concrete has good mechanical properties like compressive strength, static elastic constant, splitting tensile strength and rupture strength.

Description

technical field [0001] The invention belongs to the technical field of building materials, in particular to a sound-insulating and environment-friendly polypropylene fiber pebble concrete and a preparation method thereof. Background technique [0002] Concrete is a general term for engineering composite materials in which aggregates are cemented into a whole by cementitious materials. Generally speaking, the term concrete refers to the cement concrete obtained by using cement as the cementitious material, sand and stone as the aggregate; mixed with water (may contain admixtures and admixtures) in a certain proportion, and stirred. Concrete, which is widely used in civil engineering. Inorganic cementitious materials such as cement, lime, and gypsum are mixed with water to make the concrete mixture plastic; and then through chemical and physical and chemical actions, it coagulates and hardens to produce strength. Generally speaking, drinking water can meet the requirements o...

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Problems solved by technology

[0005] In the current building concrete, the single building physical performance requirements are mostly used as the standard, and the application of multi-functional concrete in the construction process is rarely considered. Functionality also has high requirements. It can not only meet the requirements of mechanical properties, but also meet the needs of functional buildings in terms of sound insulation, environmental protection, high temperature resistance, heat preservation, and flame retardancy. Therefore, the research on functional materials is more important.

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