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Real-time control method for natural environment concrete exposed surface moisturizing maintenance process

A technology of real-time control and natural environment, which is applied in the field of real-time control of the moisturizing and curing process of the exposed surface of concrete in natural environment, can solve the problems such as the inability to guarantee the quality of concrete, the lack of a suitable method for real-time control, and the difficulty in ensuring the goal of moisturizing and curing of concrete, etc. The effect of good effect, accurate result and high calculation accuracy

Active Publication Date: 2020-07-14
GUANGDONG YUANTIAN ENG +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] Based on the above situation, at present, there is no suitable method for concrete curing, how to scientifically and effectively carry out "moisture curing" and real-time control in the process according to the natural environment conditions (temperature, humidity, wind speed) and concrete related parameters, and the quality of concrete cannot be obtained. Guarantee, it is difficult to ensure the effective realization of the goal of concrete moisture conservation

Method used

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  • Real-time control method for natural environment concrete exposed surface moisturizing maintenance process
  • Real-time control method for natural environment concrete exposed surface moisturizing maintenance process
  • Real-time control method for natural environment concrete exposed surface moisturizing maintenance process

Examples

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Embodiment 1

[0046] Real-time control of concrete spraying and moisturizing maintenance on the upper lock head of Qingyuan second-line ship lock in Guangdong Province

[0047] 1. Real-time control method for moisturizing and curing process of concrete exposed surface in natural environment

[0048] Such as image 3 As shown, the real-time control method for the moisturizing and curing process of the exposed surface of natural environment concrete provided by this embodiment 1 includes the following steps:

[0049] Step 1. Real-time collection, ambient air humidity, and ambient wind speed data

[0050] At the concrete maintenance site on the top of the upper lock head of the Qingyuan No. 2 ship lock, construction maintenance workers use a thermo-hygrometer to measure the ambient temperature and ambient air humidity on the concrete curing surface every 1 to 2 hours, and the ambient wind speed adopts the weather forecast value. At 16:50 pm on November 29, 2018, the actual temperature at th...

Embodiment 2

[0067] Real-time control of concrete spraying, moisturizing and curing of the top-sealing layer of the downstream section of the right bank of the lower lock head of the Qingyuan second-line ship lock in Guangdong Province

[0068] On the afternoon of December 3, 2018, the joint research team of Wuhan University and the Qingyuan Ship Lock Project Department of Yuantian Group inspected the site, studied in detail the pouring of the ship lock concrete at that time, and determined the real-time control of moisturizing and maintenance on the topping layer of the downstream section on the right bank of the lower lock head Applied research, as an example of pouring concrete in low temperature seasons.

[0069] The concrete pouring time for the capping layer of the downstream section on the right bank of the lower gate head is from 5:00 on December 4, 2018 to 9:00 on December 4, 2018. At 7:00 am on December 4, 2018, the real-time control application research work began at the site. ...

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Abstract

The invention provides a real-time control method for natural environment concrete exposed surface moisturizing maintenance process, which is characterized by comprising the following steps of 1, collecting environment air temperature, environment air humidity and environment air speed in real time; 2, determining the spraying time Tk; step 3, calculating spraying stopping time according to the relevant parameters of the concrete and the collected ambient air temperature, ambient air humidity and ambient air speed; and step 4, circularly curing: spraying the concrete according to the sprayingtime Tk, stopping spraying according to the spraying stopping time Tb, and continuously circulating until the curing age is reached. According to the invention, the influence of environment humidity,environment wind speed and environment temperature on concrete is considered; the influence of the size of the concrete curing surface and the influence of laminar flow and turbulent flow formed underthe conditions of different wind speeds and different sizes of concrete curing surfaces on the humidity exchange of the concrete surface are further considered, so that the calculation precision is higher, the result is more accurate, and the curing effect is better.

Description

technical field [0001] The invention belongs to the field of engineering structure concrete maintenance, and in particular relates to a real-time control method for the moisturizing and maintenance process of the exposed surface of natural environment concrete. Background technique [0002] Concrete curing means that after concrete is poured, it gradually solidifies and hardens due to cement hydration, and hydration requires appropriate temperature and humidity conditions. Therefore, in order to ensure that the concrete has suitable hardening conditions and its strength continues to increase, it is maintained. From the principle of humidity exchange, curing must ensure that there is sufficient humidity inside the concrete, and there is basically no humidity exchange between the concrete on the curing surface and the air, that is, the curing must maintain the humidity of the concrete, hereinafter referred to as moisturizing curing. [0003] Such as figure 1 As shown, the con...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C04B40/02
CPCC04B40/0277C04B40/02
Inventor 张润德段亚辉方朝阳陈秋凡唐振东王业震刘海棠彭耀蒋邵辉
Owner GUANGDONG YUANTIAN ENG
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