Baking-free brick and preparation method thereof

Abstract

The invention relates to a baking-free brick which is prepared from the following raw materials in parts by weight: 30-45 parts of waste asphalt concrete, 10-15 parts of regenerated glass fiber reinforced plastic fibers, 15-20 parts of fly ash and 15-20 parts of lime powder. The baking-free brick is prepared by taking the waste asphalt concrete and the regenerated glass fiber reinforced plastic fibers as main materials, taking the fly ash and the lime powder as auxiliary materials, adding 15-20 parts of water, stirring and mixing, and carrying out compression molding and steam curing. The preparation method comprises the following steps of: crushing and sieving the waste asphalt concrete; cutting and crushing glass fiber reinforced plastic plate-shaped waste to obtain glass fiber reinforced plastic regenerated powder and glass fiber reinforced plastic regenerated fibers; adding water into the treated waste asphalt concrete, the treated regenerated glass fiber reinforced plastic fibers, the fly ash and the lime powder according to the proportion, stirring, and mixing well to obtain a mixture; weighing the mixture and pressing the mixture into a green brick; and performing steam curing on the prepared green brick, and cooling to obtain the baking-free brick. The prepared baking-free brick is more compact in structure, and the average compressive strength and the breaking strength are further improved.

Description

technical field [0001] The invention relates to the technical field of comprehensive utilization of construction waste resources and new building materials, in particular to an unfired brick and a preparation method thereof. Background technique [0002] my country's infrastructure construction has developed rapidly in recent decades, and in some high-grade road surfaces of highways, the proportion of asphalt concrete pavement has reached more than 80%. According to the design requirements of pavement specifications in my country, the design service life of asphalt pavement is generally 10 to 15 years. However, due to the rapid increase of traffic volume on the road surface, heavy load and overloading phenomenon are serious, resulting in the fact that many asphalt pavements are already in an overloaded working state. In addition, they are affected by environmental factors such as rain, snow and sunlight, resulting in a significant reduction in their service life. Generally,...

AI Technical Summary

Problems solved by technology

The extra emulsified asphalt and 62.5 grade Portland cement are expensive, and the waste utilization rate is relatively low; and the block forming pressure is low, the compactness is small, easy to loosen, and the compressive strength is small

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