Comparison of influence of surfactants on thermokinetic characteristics of alkali-activated slag cement
نویسندگان
چکیده
Increasing the durability of concrete and reinforced structures according to criterion crack resistance is a relevant task construction materials science. To solve this task, paper proposes effective solutions for adjusting thermofinite characteristics alkali-activated slag cement (ASC) by using surfactants various chemical nature in order control thermally-stressed state based on it (ASC concrete). The method calorimetry was applied show that problematic issue adjust structure formation ASC anion-active surface-active substances complex polyesters. This predetermined instability molecular hydration environment due destruction ester bonds as result alkaline hydrolysis. Thermokinetic analysis has demonstrated effectiveness surfactants, which do not contain bonds, regulators concrete. Simple polyesters multi-atom alcohols provide ability duration induction period while ensuring required completeness within time frame. cation-active been shown, are characterized stability an increased level adsorbing capacity. decrease terms effect heat release ASC, following series: salt carboxylic acid>salt quaternary ammonium compound>simple polyester> polyalcohol>complex polyester. reported results important view possibility adjustment influencing surfactant with certain arrangement predictably reduce corresponding increase
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ژورنال
عنوان ژورنال: Eastern-European Journal of Enterprise Technologies
سال: 2021
ISSN: ['1729-3774', '1729-4061']
DOI: https://doi.org/10.15587/1729-4061.2021.245916