High-volume mixed glass powder C180UHPC and preparation method thereof

Abstract

The invention discloses high-volume mixed glass powder C180UHPC and a preparation method thereof. UHPC of the high-volume mixed glass powder C180UHPC comprises components in the proportion as follows:cement with concentration of 770.2 kg / m<3>, silica fume with concentration of 154.0 kg / m<3>, fly ash with concentration of 38.5 kg / m<3>, fine glass powder with concentration of 154.0 kg / m<3>, a superplasticizer with concentration of 46.2 kg / m<3> and steel fiber with concentration of 156 kg / m<3>. The invention further discloses a preparation method of the UHPC. A curing way comprises steps as follows: a concrete test block is wrapped with wet cotton cloth tightly, and water is sprayed intermittently at high frequency for curing or the concrete test block is put in water for curing. Not only isthe curing mechanism simplified, but also moisture in concrete is effectively prevented from being evaporated. The high-volume mixed glass powder C180UHPC and the preparation method thereof have following technical advantages: waste glass is recycled, natural material consumption is reduced, and energy-saving and environment-friendly effects are achieved; the glass powder has pozzolanic activity,and concrete strength and durability are improved; the glass powder with different particle sizes are mixed, and accumulation gaps among quartz sand are filled, so that the structure is tighter; a water-binder ratio and the superplasticizer are preferably selected, and the UHPC has the self-compaction advantage.

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 C180UHPC 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