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Predicted of hydration heat and compressive strength of limestone cement mortar with different type of superplasticizer

机译：不同类型高效减水剂对石灰石水泥砂浆水化热和抗压强度的预测

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The use of some superplasticizers in the production of mortar or concrete influences the hydration kinetic and the amount of total heat. This results in a modification of some properties, namely mortar workability, mechanical strength and durability. Three superplasticizers were used; a polynaphthalenesulfonate (PNS), a melamine resin (PMS) and a polycarboxylate (PC). They have been incorporated into various amount in a standardized mortar based on limestone cement. The aim of this study was to evaluate the rheological, mechanical and Calorimeters properties of this mortar. This will select the most compatible product and more able to be used depending on the climate of the country and the cement used. The PNS is incompatible with this type of cement registering a decrease of strength but the PMS and the PC modify the kinetics of hydration with significant heat generation and improved mechanical strength. The measured heat flow is significantly influenced by the type and dosage of superplasticizer especially for low dosage. Hydration heat and compressive strength of the different mixtures can be evaluated by determining their ultimate values and ages to reach these values where the correlation coefficients are very satisfactory.
机译：在砂浆或混凝土生产中使用某些高效减水剂会影响水合动力学和总热量。这导致某些性能的改变，即砂浆可加工性，机械强度和耐久性。使用了三种高效减水剂。聚萘磺酸盐（PNS），三聚氰胺树脂（PMS）和聚羧酸盐（PC）。它们已在基于石灰石水泥的标准化砂浆中掺入了各种数量。这项研究的目的是评估该砂浆的流变，机械和量热性能。这将选择最兼容的产品，并根据该国的气候和所使用的水泥来选择使用更多的产品。 PNS与这种类型的水泥不相容，强度降低，但PMS和PC会通过显着的热量产生和改善的机械强度来改变水合动力学。高效减水剂的类型和用量会显着影响所测得的热流，特别是对于低用量的情况。在相关系数非常令人满意的情况下，可以通过确定其最终值和达到这些值的年龄来评估不同混合物的水合热和抗压强度。

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