Pig houses provide a highly aggressive environment to concrete structures. The chemical aggressiveness generated by pig manure may cause wear, loss in strength and premature damage to floors, leading to animal hoof diseases. ...

This paper deals with the effect of silica fume and styrene-butadiene latex (SBR) on the microstructure of the interfacial transition zone (ITZ) between Portland cement paste and aggregates (basalt). Scanning electron ...

The use of the maturity approach has been increasing in various fields of concrete construction. In order to estimate the development of a mechanical property of the concrete mixture reliably, it is necessary to previously ...

This work describes proposed experimental methods for the characterization of concrete in fresh and hardened state, with the purpose of contributing to the experimental characterization of concrete. The main objective was ...

The use of mineral additives, such as active silica, leads to improvements in the properties of cementitious materials, mainly related to the compressive strength of the paste. With additives particles in nanometer scale, ...

The pozzolanic effect of the sol-gel silica additive on the structure andcompressive strength of Portland cement paste of high initial resistance and reactive powder concrete, with low factor water/cement, was analyzed. ...