El objetivo de esta investigación es hacer un análisis documental de investigaciones realizadas con el uso de aditivos fluidizantes, a base de copolímeros, con la finalidad de encontrar hormigones que cumplan con las exigencias del mercado. La metodología consistió en hacer un análisis documental/bibliográfica de investigaciones utilizando buscadores disponibles. Se utilizó como filtro de búsqueda el período del 2017 hasta marzo 2021, obteniendo como resultado, investigaciones que obtuvieron un Slump Flow de 32.5 cm., para una dosis de 0.3% de aditivo, encontrándose en un rango de 0.25% a 0.40%. El aditivo sintetizado en forma de peine, con codificación PCE-2, tuvo una resistencia a la compresión de 85 MPa con adiciones minerales, ensayado a los 28 días con una relación a/c de 0.30. Para un PC-3, se obtuvo una resistencia a la compresión de 73 MPa, sin adiciones minerales...

In this research named “Baked clay as a fine aggregate to improve the mechanical properties of structural concrete”, it was taken into consideration the relations water/concrete between 0.55 and 0.65 for a resistence to the axial compression of  f´c =210 kg/cm2. In the present investigation it was taken into account that the material is affected by the precense of high concentrations of chlorides and sulfates, because of its high porosity and permeability that make it fragile and weak not recommendable for structures with armed reinforcement. The natural fine aggregate was replaced by baked clay on different proportions (0, 15, 20 and 25%) analyzing the clay chemical properties, as well as the hardened concrete mechanical properties (flexion, tension and compression at 28 days). The outcomes of the trials indicate the viability of using ground baked clay as a fine aggregate in ...

In this research named “Baked clay as a fine aggregate to improve the mechanical properties of structural concrete”, it was taken into consideration the relations water/concrete between 0.55 and 0.65 for a resistence to the axial compression of  f´c =210 kg/cm2. In the present investigation it was taken into account that the material is affected by the precense of high concentrations of chlorides and sulfates, because of its high porosity and permeability that make it fragile and weak not recommendable for structures with armed reinforcement. The natural fine aggregate was replaced by baked clay on different proportions (0, 15, 20 and 25%) analyzing the clay chemical properties, as well as the hardened concrete mechanical properties (flexion, tension and compression at 28 days). The outcomes of the trials indicate the viability of using ground baked clay as a fine aggregate in ...