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High-intensity low adiabatic temperature rise concrete and analysis method for adiabatic temperature rise value of same

A technology of adiabatic temperature rise and analysis method, applied in the field of concrete, can solve the problem of lack of design specifications for temperature rise of silica fume concrete

Inactive Publication Date: 2019-08-30
FOSHAN UNIVERSITY
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  • Application Information

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Problems solved by technology

The influence of silica fume on the calorific value of concrete has not yet been ascertained, and there is also a lack of design specifications for the temperature rise of silica fume concrete

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  • High-intensity low adiabatic temperature rise concrete and analysis method for adiabatic temperature rise value of same
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  • High-intensity low adiabatic temperature rise concrete and analysis method for adiabatic temperature rise value of same

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Embodiment Construction

[0020] The technical features in the technical solutions provided by the present invention will be further clearly and completely described below in conjunction with specific implementation methods. Obviously, the described embodiments are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.

[0021] The words "preferred", "preferably", "more preferred", etc. herein refer to embodiments of the invention which may afford certain advantages, under certain circumstances. However, other embodiments may also be preferred, under the same or other circumstances. Furthermore, the recitation of one or more preferred embodiments does not imply that other embodiments are not useful, nor is it intended to exclude other embodiments from the scope of the invention....

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Abstract

The invention relates to the technical field of concrete, and in particular relates to high-intensity low adiabatic temperature rise concrete and an analysis method for the adiabatic temperature risevalue of the same. Silicon powder can improve performance such as concrete intensity, durability and the like, but the influence of the silicon powder to the adiabatic temperature rise of the concreteis not clear, pertinent literature even summarizes opposite conclusions on the influence of the silicon powder on the heat of the concrete. In order to discuss the influence, the research prepares 15silicon powder concrete proportioned samples with different water-binder ratios, different silicon powder aiming amount to measure half adiabatic temperature rise values, and acquires the adiabatic temperature rise value via a thermal compensation method. The result proves that the adiabatic temperature rise of the concrete can be reduced by silicon powder, and the adiabatic temperature rise value can be significantly reduced under the same intensity requirement. Based on the silicon powder concrete adiabatic temperature rise result, the research acquires the adiabatic temperature rise prediction formula via regression analysis, and the silicon powder concrete adiabatic temperature rise value design drawing is drawn.

Description

technical field [0001] The invention relates to the technical field of concrete, in particular to a high-strength low-insulation temperature-rise concrete and an analysis method for its adiabatic temperature-rise value. Background technique [0002] Water conservancy projects often need to pour super-large-volume concrete such as dams, and controlling the early cracking caused by the hydration temperature rise of large-volume concrete is one of the main problems in the design and construction of water conservancy projects. This is due to the hydration reaction between the cementitious material and water during the setting and hardening of fresh concrete and a large amount of heat of hydration will be generated. Due to the slow heat dissipation of mass concrete in water conservancy projects, the temperature of freshly mixed concrete will rise rapidly with the gradual accumulation of heat of hydration. At the same time as the temperature rises, the cementitious material gradu...

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N25/48
CPCG01N25/4846
Inventor 陈嘉健
Owner FOSHAN UNIVERSITY
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