Thermogravimetric analyses and mineralogical study of polymer modified mortar with silica fume
AUTOR(ES)
Almeida, Alessandra Etuko Feuzicana de Souza, Sichieri, Eduvaldo Paulo
FONTE
Materials Research
DATA DE PUBLICAÇÃO
2006-09
RESUMO
Mineral and organic additions are often used in mortars to improve their properties. Microstructural investigation concerning the effects of styrene acrylic polymer and silica fume on the mineralogical composition of high-early-strength portland cement pastes after 28 days of hydration are presented in this paper. Thermogravimetry and derivative thermogravimetry were used to study the interaction between polymers and cement, as well as the extent of pozzolanic reaction of the mortars with silica fume. Differential scanning calorimetry and X ray diffraction were used to investigate the cement hydration and the effect of the additions. The results showed that the addition of silica fume and polymer reduces the portlandite formation due to delaying of Portland cement hydration and pozzolanic reaction.
Documentos Relacionados
- Comparative study of the characteristics of nano silica - , silica fume - and fly ash - incorporated cement mortars
- Fracture mechanics of polymer mortar made with recycled raw materials
- Chemical functionalization of ceramic tile surfaces by silane coupling agents: polymer modified mortar adhesion mechanism implications
- Quantification of Aerospace Polymer Blends by Thermogravimetric Analysis and Infrared Spectrometry
- Behavior of conventional glass fibers in matrix of Portland cement modified with latex and with the addition of silica fume.