Conferencia Internacional de Producción y Uso Sostenible del Cemento y Hormigón

Conferencia Internacional de Producción y Uso Sostenible del Cemento y Hormigón

Behavior of concrete made with PP-35 cement in the province of Cienfuegos

Resumen [ES]

The problem is derived by the start of the production of PP-35 cement in the Cienfuegos province and the need to know its performance in premixed and precast concrete mixtures, produced with aggregates from this province. Thus, the objective is to characterize the behavior of concrete made with PP-35 cement, to assess its possible application in the prefabricated industry and pre-mixed concrete, with the use of aggregates from the Cienfuegos province.

 The methodology followed in the work was carried out experimentally in laboratory conditions, evaluating the behavior of the resistance, sorptivity and effective porosity, when the water/cement ratio varies (0.7 - 0.72). At the same time, this same process was carried out for the cements P-35 and PP-35, achieving a comparison of the behavior models in the three types of cement. The results show that for equal water/cement ratios does not significantly change the resistance of concrete at 28 days when the type of cement used changes, on the other hand, pozzolanic cements improve the sorptivity and porosity compared to cement P-35. The studies allowed to reach the conclusions that it is feasible to use PP-35 cement in the production of premixed concrete and in the prefabricated industry, provided that water-reducing additives, retarders and industrial tests and corrections are used for their application in practice.

Resumen [EN]

The problem is derived by the start of the production of PP-35 cement in the Cienfuegos province and the need to know its performance in premixed and precast concrete mixtures, produced with aggregates from this province. Thus, the objective is to characterize the behavior of concrete made with PP-35 cement, to assess its possible application in the prefabricated industry and pre-mixed concrete, with the use of aggregates from the Cienfuegos province.

 The methodology followed in the work was carried out experimentally in laboratory conditions, evaluating the behavior of the resistance, sorptivity and effective porosity, when the water/cement ratio varies (0.7 - 0.72). At the same time, this same process was carried out for the cements P-35 and PP-35, achieving a comparison of the behavior models in the three types of cement. The results show that for equal water/cement ratios does not significantly change the resistance of concrete at 28 days when the type of cement used changes, on the other hand, pozzolanic cements improve the sorptivity and porosity compared to cement P-35. The studies allowed to reach the conclusions that it is feasible to use PP-35 cement in the production of premixed concrete and in the prefabricated industry, provided that water-reducing additives, retarders and industrial tests and corrections are used for their application in practice.

Sobre el ponente

Sergio Betancourt Rodríguez

Sergio Betancourt Rodríguez

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Información Práctica
No definido
30 minutos
No definido
Autores
Betsy Hoyos Rodríguez and Camilo González Díaz
Palabras clave
Compressive strength
Concrete
Pozzolanic cement