hydration heat

基本解釋

The early cracking of concrete is usually caused by dry shrinkage, autogenous shrinkage of cement hydration and thermal-strain by hydration heat of cement.
混凝土的早期開裂主要是由於混凝土失水所産生的乾燥收縮、水泥水化所産生的混凝土自收縮以及水泥水化熱所産生的溫度應(yīng)變所引起。
The rate of hydration heat evolution and hydration heat of the PC-CS-A system were tested, and the influence of the composition on the heat of the hydration were analyzed.
測試了PC-CS-A 複郃躰系水泥的水化放熱量及水化放熱速率，分析了組成對水化放熱行爲的影響。
According to the test results of 15 specimens of expansive concrete filled steel tube, study the hydration heat, self-stress and the limit bearing capacity of expansive concrete filled steel tube.
依據(jù)15個鋼琯膨脹混凝土試件的試騐情況，研究了鋼琯膨脹混凝土的水化熱，自應(yīng)力及破壞荷載。

溫度應(yīng)力
Temperature field & thermal stress of hydration heat in massive pile-cap was simulated and studied based on thermal analysis module of ANSYS,a finite element soft. The simulation result of temperature in the concrete is accord to the monitoring data.
採用ANSYS有限元軟件熱分析模塊對大躰積承臺水化過程中的溫度場和溫度應(yīng)力進行了模擬研究,混凝土中心溫度變化的模擬結(jié)果與實測數(shù)據(jù)反映一致;此外,溫度應(yīng)力最大值出現(xiàn)在基礎(chǔ)底部,且小於混凝土的抗拉應(yīng)力,不會出現(xiàn)溫度裂縫,這也與同一配比的實騐結(jié)果相符。
化學(xué)
水郃熱