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一、混凝土温度测定记录仪试制和可行性试验在大体积钢筋混凝土施工中的一个主要技术课题就是如何控制裂缝的产生,而引起裂缝产生的诸因素中,混凝土水化热和外界气温造成的构件内部的温度应力是一个很主要的因素。为了控制裂缝的产生,除需抗裂理论的计算外,还需采取相应的施工技术措施,正确及时地掌握大体积钢筋混凝土内部的温度场分布和变化情况,确保施工质量。为此,我们在深入调查研究的基础上,经过各种方案对比,多次试验,终于试制成功了混凝土温度测定记录仪.它可测108点温度,能直接读数并自动记录,造价仅2800元。仪器试制完成后,我们对其精度进行了严格的测试。
First, the concrete temperature measurement and recording instrument trial and feasibility test A major technical task in the construction of large-scale reinforced concrete is how to control the production of cracks, resulting in cracks caused by the factors, concrete hydration heat and external temperature caused by components The internal temperature stress is a major factor. In order to control the generation of cracks, in addition to the calculation of the anti-crack theory, it is necessary to take corresponding construction technical measures to correctly and timely grasp the temperature field distribution and changes inside the large volume reinforced concrete to ensure the construction quality. For this purpose, on the basis of in-depth investigation and study, after various comparisons and multiple tests, we finally succeeded in trial production of a concrete temperature measurement recorder. It can measure 108 points of temperature, can directly read and automatically record, and the cost is only 2,800 yuan. . After the trial production of the instrument was completed, we strictly tested its accuracy.