High-volume mixed glass powder C190UHPC (Ultra-High Performance Concrete) and preparation method thereof

Abstract

The invention discloses high-volume mixed glass powder C190UHPC (Ultra-High Performance Concrete) and a preparation method thereof. The high-volume mixed glass powder C190UHPC is prepared from the following components in proportions: 773.4kg / m<3> of cement, 154.7kg / m<3> of silica fume, 38.7kg / m<3> of pulverized fuel ash, 154.7kg / m<3> of fine glass powder, 46.4kg / m<3> of a superplasticizer, 216.6kg / m<3> of coarse glass powder, 866.2kg / m<3> of quartz sand, 193.4kg / m<3> of water and 156kg / m<3> of steel fiber. The invention also discloses the preparation method of the high-volume mixed glass powder C190UHPC. A maintenance mode is characterized by tightly coating a concrete test block by using wet cotton cloth, and intermittently spraying water at a high frequency for maintaining, or maintaining in water. Not only a maintenance system is simplified, but also evaporation of water in concrete is effectively prevented. The high-volume mixed glass powder C190UHPC disclosed by the invention hasthe following technical advantages that waste glass can be recycled, consumption of natural materials is reduced, and the effect of environmental protection is achieved; the glass powder has pozzolanic activity, so that the strength and the durability of the concrete are increased; due to the doping of the glass powder in different grain diameters, accumulation gaps between the quartz sand is remedied, and the structure is tighter; a water-glue ratio and the superplasticizer are preferably selected, so that the high-volume mixed glass powder C190UHPC has the advantage of self-compaction.

Description

technical field [0001] The invention relates to the technical field of preparation of civil engineering materials, in particular to a high-volume mixed glass powder C190UHPC and a preparation method thereof. Background technique [0002] With the rapid development of modern society, there are more and more super high-rise buildings, long-span bridges, port airports and other super projects. Concrete, as the leading material of building structures, has high strength, high The requirements for durability and high toughness are constantly increasing, and a new type of cement-based composite material, Ultra-High Performance Concrete (UHPC for short), has emerged as the times require. [0003] The traditional UHPC preparation method mainly has two important means, one is to reduce the water-binder ratio of concrete, and increase the strength by reducing the water content in the concrete and reducing water evaporation; the other is to place the concrete in a special curing environ...

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Problems solved by technology

For example, under normal production conditions in a glass factory, the corner glass cut from the original plate glass accounts for about 15-25% of the total glass production, and a considerable part of waste glass is waste glass produced by regular shutdowns, accounting for about 15% of the total glass production. 5-10% of the total production, and due to occasional fluctuations in the operating temperature of the melting furnace or sudden changes in the quality of raw materials and batch uniformity and operational errors, the waste glass and glass products generated during transportation and use are unstable. loss, whose amount is difficult to estimate