Abstract A liquid-type temperature rise inhibitor (L-TRI) based on modified sorbitol was developed to solve the thermal cracking issue by modulating the heat release from cement hydration during the early age. Both the exothermic process and phase evolution of cement pastes blended with/without L-TRI were investigated by the combination of isothermal calorimetry, in-situ XRD, ICP-OES and SEM. Also, the adsorption of the L-TRI in the cement paste was identified by total organic carbon analysis. The testing results suggested that the L-TRI affected the heat flow curve in two ways. It prolonged the induction period as a retarding effect. It also reduced the heat flow during the acceleration period and decreased the maximum heat flow as a depressing effect. The retarding effect was mainly caused by the complexation of unabsorbed molecules in the pore solution, and the depressing effect was caused by inhibiting the growth of C-S-H.

中文翻译：

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液体型温升抑制剂对水泥水化的影响

摘要 为了解决水泥早期水化热释放的热裂问题，开发了一种基于改性山梨糖醇的液体型温升抑制剂（L-TRI）。通过等温量热法、原位 XRD、ICP-OES 和 SEM 的组合研究了混合有/没有 L-TRI 的水泥浆的放热过程和相演变。此外，通过总有机碳分析确定了水泥浆中 L-TRI 的吸附。测试结果表明，L-TRI 以两种方式影响热流曲线。它延长了诱导期作为阻滞作用。它还减少了加速期间的热流，并降低了最大热流作为抑制效果。