Influence of the physical characteristics of sand and the crushed filler content on the properties of self-leveling mortars
AUTOR(ES)
Scolaro, T. P.; Rocha, J. C.
FONTE
Cerâmica
DATA DE PUBLICAÇÃO
2021-06
RESUMO
Abstract The properties of self-leveling mortars (SLMs) in the fresh and hardened state are strongly affected by their formulation. In this study, the influence of three different quartz sands (different physical characteristics) was investigated in SLMs, as well as the replacement of these sands by crushed basalt filler. The tests performed were: spreading, density in the hardened state, absorption by immersion, flexural strength, compressive strength, dynamic modulus of elasticity, water capillary absorption, and drying shrinkage. The results obtained show that the particle size distribution (PSD) of sand influenced most of the properties. The shape and texture of the sand grains did not seem to have much influence on the properties of SLMs when the PSD was different. The powdery (fine) material content of sand seemed to affect most notably properties in the fresh state and shrinkage. The increase in the content of sand replacement by filler decreased the workability of SLMs, however, it may improve the initial flexural and compressive strengths and reduce the drying shrinkage.
Documentos Relacionados
- Influence of bottom ash and red mud additions on self-leveling underlayment properties
- Ternary system Portland cement-calcium aluminate cement-calcium sulfate applied to self-leveling mortar: a literature review
- Influence of silane content and filler distribution on chemical-mechanical properties of resin composites
- Influence of Photoinitiator System on Physical-Chemical Properties of Experimental Self-Adhesive Composites
- The Influence of Bleached Jute Fiber Filler on the Properties of Vulcanized Natural Rubber