PORTLAND CEMENT BASED CEMENTING COMPOUND WITH THERMAL PROPERTIES OPTIMIZED BY INCORPORATING A COPOLYMER AND ITS PREPARATION PROCESS

• Main Authors: PEDRO LEOBARDO VALDEZ TAMEZ, ALFONSO RAFAEL LEDEZMA GALLEGOS, JOANA KETTERINE CAMPOS DIMAS, ALEJANDRO DURAN HERRERA, FRANCISCO RAMON RUBIN ZACARIAS
• Format: Patent
• Language: English; Spanish
• Published: 13.02.2017
• Subjects: ARTIFICIAL STONE; CEMENTS; CERAMICS; CHEMISTRY; COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS; CONCRETE; LIME, MAGNESIA; METALLURGY; REFRACTORIES; SLAG; TREATMENT OF NATURAL STONE

The present disclosure is related to a Portland cement based cementing compound with thermal properties optimized by incorporating a copolymer; comprising Portland cement, fly ash, at least one water insoluble copolymer and an additive. The cementing compound comprises Portland-type cement, taking up to between 32.5 and 37% of the total volume of the mixture, fly ash (between 17.5 and 20%) and a water-insoluble copolymer (43-50%), while the additive content is between 5 to 25 g/kg of the mixture between Portland cement and fly ash. Said cementing compound has a specific heat of between 1.232 and 1.434 J/g·K, a volumetric weight of between 560 and 740 Kg/m3, a thermal conductivity of between 0.17 to 0.22 W/(m·K) and a volumetric weight of 740 to 900 Kg/m3; having a thermal conductivity of between 0.31 to 0.37 W/(m·K). La presente invención describe un compuesto cementante base cemento portland con propiedades térmicas optimizadas mediante la incorporación de un co-polímero, que se comprende de cemento tipo portland, ceniza volante, al menos un co-polímero insoluble en agua y un aditivo. El compuesto cementante se comprende de un cemento tipo portland, el cual ocupa entre el 32.5 y el 37 % del volumen total de mezcla, ceniza volante (entre 17.5 a 20 %) y co-polímero insoluble en agua (entre 43 a 50%), mientras que el contenido de aditivo es de entre 5 a 25 g/kg de la mezcla entre el cemento tipo portland y la ceniza volante. Dicho compuesto cementante posee un calor específico de entre 1.232 y 1.434 J/g·K, a un peso volumétrico de entre 560 y 740 Kg/m3 posee una conductividad térmica de entre 0.17 a 0.22 W/(m·K) y a un peso volumétrico de entre 740 a 900 Kg/m3 posee una conductividad térmica de entre 0.31 a 0.37 W/(m·K).