The influence of thermal activation of art paper sludge on the technical properties of blended Portland cements

作者: M. Frías , R. Vigil de la Villa , M.I. Sánchez de Rojas , S. Ferreiro

DOI: 10.1016/J.CEMCONCOMP.2012.11.005

关键词:

摘要: Abstract The influence of the thermal activation (600–750 °C) a clayey waste (art paper sludge, APS) and replacement rate cement by this pozzolan on technical parameters such as normal consistency water, setting time, soundness compressive strength were investigated. Physical properties raw materials particle size distribution BET surface areas also reported. results have demonstrated that substitution Portland CEM I 42.5 activated art sludge (AAPS) increases water decreases times blended cements, with increasing rate, temperature and/or time activation. However, if APS is properly at around 600–650 °C for 2 h, it feasible to substitute 10% without adverse effects properties, due pozzolanic activity metakaolinite set regulator features calcite, two major mineral phases present in AAPS.

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