Fiber reinforced concrete and preparation method thereof

Abstract

The invention discloses fiber-reinforced concrete and a preparation method thereof. Carbon fibers, brucite fibers, glass fibers, epoxy resin, acrylate emulsion, a dispersing agent, diatomite and rubber powder are used to prepare a reinforced fiber material by using reinforced fiber production equipment; and then cement, fly ash, mineral powder, water, gravels, river sand, a water reducing agent and the reinforced fiber material are uniformly mixed to prepare the fiber reinforced concrete. The fiber reinforced concrete has excellent compressive strength and flexural strength; and according to the reinforced fiber production equipment, raw materials are stirred evenly through a powder making mechanism and then dried, then the raw materials are smashed into powder, the smashed powder is screened through a screening mechanism according to the particle size, the powder with the small particle size is selected to be used for preparing concrete, reinforced fiber materials are evenly dispersedin the concrete, thus the effect of the reinforced fiber material is fully exerted, and the prepared concrete is further good in mechanical property and high in quality.

Description

technical field [0001] The invention relates to the field of concrete, in particular to a fiber-reinforced concrete and a preparation method thereof. Background technique [0002] Concrete is one of the most important civil engineering materials today. It is a kind of artificial stone made of cementitious materials, granular aggregates, water, and admixtures and admixtures added when necessary. It is uniformly stirred, densely formed, cured and hardened. Concrete has raw materials. Rich, low price, and simple production process, so its usage is increasing. [0003] The patent with the application number CN201710098518.7 discloses a concrete and its preparation method, wherein a concrete includes the following components in parts by weight: 103-133 parts of cement; 20-36 parts of river sand; 21-31 parts of gravel 45-60 parts of water; 12-23 parts of fiber mixture; 21-33 parts of lignin; 20-36 parts of adhesive; 12-18 parts of concrete expansion agent; 35-51 parts of filler;...

AI Technical Summary

Problems solved by technology

[0004] In order to overcome the above-mentioned technical problems, the object of the present invention is to provide a kind of fiber-reinforced concrete and its preparation method: prepare the reinforced fiber material through the reinforced fiber production equipment, add the acrylate emulsion to the curing box from the hopper, and then add Diatomite and rubber powder in the acrylate emulsion, start the stirring motor, and the rotation of the stirring motor drives the spiral stirring blade to rotate the diatomite and rubber powder in the acrylate emulsion to obtain the first mixture. By starting the first scraper, The heating wire in the second scraper releases heat to heat and dry the first mixture, start the second cylinder, the movable rod of the second cylinder shrinks and pulls the second scraper to move, and the second scraper is dried through the curing box The first mixture is scraped off, the first cylinder is started, the moving rods of the four first cylinders shrink and pull the first scraper to rise, and the first mixture dried on the first scraper is scraped off through the scraper frame, all The dry first mixture falls on the two crushing rollers, start the crushing motor, and the crushing motor runs through two linkage gears to drive the two crushing rollers to rotate, and the dry first mixture is crushed into powder, and the powdery first mixture passes through the receiving machine. The hopper and material inlet fall onto the screening plate, start the vibration motor, the vibration motor drives the screening tank and the screening plate to vibrate, part of the powdery first mixture passes through the screen, and is discharged from the fine material outlet through the deflector , to obtain the mixed powder, the remaining powdery first mixture passes through the discharge port, and is discharged from the coarse material outlet, and the epoxy resin is added to the curing box for heating and melting, and the mixed powder and dispersant are added to the molten epoxy resin After mixing uniformly, carbon fiber, brucite fiber and glass fiber are added in sequence, after mixing uniformly, the second mixture is obtained, the second mixture is heated and dried, and then crushed into powder by crushing rollers to obtain the powdery second mixture, Part of the powdery second mixture will pass through the screen and be discharged from the fine material outlet to obtain reinforced fiber material. Mix river sand, gravel, cement, mineral powder, fly ash, and water evenly and add water reducer to mix evenly. Finally, add reinforced fiber material and mix evenly to obtain the fiber-reinforced concrete, which solves the problem that the existing concrete toughness, flexural strength and compressive strength are not good enough

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