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Mass concrete temperature gradient limit value analysis method and device

A large-volume concrete, temperature gradient technology, applied in the direction of thermometers, measuring devices, thermometers, etc., can solve the problems of disproportionate effect, waste of manpower and material resources, and achieve the effect of preventing harmful cracks

Active Publication Date: 2018-12-11
雷元新
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Problems solved by technology

Therefore, to maintain the mass concrete and control the temperature difference between the interior and exterior of the mass concrete based on this temperature difference limit will not only waste a lot of manpower and material resources, but also the effect of investment and maintenance is not directly proportional

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  • Mass concrete temperature gradient limit value analysis method and device

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Embodiment Construction

[0029] The concept, specific structure and technical effects of the present disclosure will be clearly and completely described below in conjunction with the embodiments and drawings, so as to fully understand the purpose, scheme and effect of the present disclosure. It should be noted that, in the case of no conflict, the embodiments in the present application and the features in the embodiments can be combined with each other.

[0030] Such as figure 1 Shown is a flow chart of a large-volume concrete temperature gradient limit analysis method, combined below figure 1 A method for analyzing the temperature gradient limit of mass concrete according to an embodiment of the present disclosure will be described.

[0031] The present disclosure proposes a mass concrete temperature gradient limit analysis method, which specifically includes the following steps:

[0032] Step 1, calculate the cumulative heat of cement hydration and the adiabatic temperature rise data of concrete a...

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Abstract

The invention discloses a mass concrete temperature gradient limit value analysis method and device. The maximum acceptable temperature gradient limit values can be calculated according to the crack-free conditions at different locations and depths of mass concrete at different ages, a concrete curing scheme can be formulated more reasonably according to the temperature gradient limit values, thecuring quality is improved in a condition with low input, the effect of controlling the development of temperature cracks is achieved, the temperature gradient limit values of mass concrete of different depths at different ages are applied to temperature monitoring of mass concrete construction, and accordingly, a more reasonable mass concrete curing scheme is made, and quantitative prediction andprevention of harmful cracks can be realized.

Description

technical field [0001] The present disclosure relates to the field of concrete construction, in particular to a method and device for analyzing the temperature gradient limit value of mass concrete. Background technique [0002] In actual engineering, the control of temperature cracks in mass concrete construction mainly relies on manual monitoring and professional experience. It is based on the regulations of my country's mass concrete construction code: the temperature difference between the inside and outside of the concrete pouring block (excluding the equivalent temperature of concrete shrinkage) should not be greater than 25 °C. This temperature difference is used as the criterion for concrete cracking. [0003] Practice has proved that if it is simply considered that the internal and external temperature difference caused by the heat of cement hydration in mass concrete cannot exceed the 25°C specified in the code, as a criterion for the concrete not to crack, there ...

Claims

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Application Information

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IPC IPC(8): G01K13/10G01K1/02
CPCG01K1/024G01K13/10
Inventor 雷元新符耀东
Owner 雷元新
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