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| C30钢渣混凝土的温度线膨胀系数试验研究 |
| Experimental Study on the Coefficient of Thermal Expansion for C30 Steel Slag Concrete |
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| DOI： |
| 中文关键词: 无应力计 C30钢渣混凝土 无应力应变 最小二乘法拟合 温度线膨胀系数 |
| 英文关键词: No-stress Meter C30 Steel Slag Concrete no-stress strain Least Square Fitting Coefficient of Thermal Expan-sion |
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| 中文摘要: |
| 通过埋设在C30普通混凝土和C30钢渣混凝土中无应力计的实测伴测温度及计算得到的无应力应变值,采用最小二乘法进行拟合.拟合成果表明:C30普通混凝土的温度线膨胀系数接近10.0×10-6/℃,C30钢渣混凝土的温度线膨胀系数大于11.0×10-6/℃;无论是C30普通混凝土还是C30钢渣混凝土,其温度线膨胀系数α不是一个定值,它随着时间的改变而改变.为实现钢渣在混凝土中安全、可靠的利用,建议钢渣混凝土在温度应力对结构稳定性影响不大的建(构)筑物中使用. |
| 英文摘要: |
| The temperature within C30 regular and steel slag concrete was monitored and the no- stress strain was calculated through the least squares fitting. This result showed that regular concrete has coefficient of thermal expansion less than 10. 0 × 10- 6/ ℃ while steel slag concrete has coefficient of thermal expansion more than 11. 0 × 10- 6/ ℃. For both concrete,the coefficient is not a constant. According to the monitoring data and analysis,it is suggested that steel slag concrete should be used for structures which are not sensitive to stress induced by temperature. |
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