...Michael J. McCarthy; Thomas A. Hope; Laszlo J. Csetenyi Wet stored fly ash is increasingly being considered as a cement component in concrete. However, the effect of these conditions on the material's reactivity is uncertain. The research described here investigated this property for wet laboratory...

...Anurat Poowancum; Prasert Aengchuan Low-reactivity fly ash (LRFA), obtained from combustion in a low-temperature furnace, is a hazardous waste with low pozzolanic activity that is unsuitable for engineering applications. This study investigated the effects of mixing procedure (sequence mixing...

... cements differing in alkali content and with the addition of a highly reactive, aluminium-rich metakaolin and a calcined common clay with low kaolinite content was investigated during the first 48 h. For this purpose, four established methods that describe the early hydration were used: isothermal...

... and belite was not affected and the formation of a zinc oxide phase was detected. The threshold limit for zinc was identified to be 0.3 wt% for all the tested clinkers. Assessment of the reactivity of cements at the threshold limits was followed by calorimetric and compressive strength measurements...

... nitrogen oxides (NO_x) reduction, co-combustion, supercritical steam technology and oxy-fuel combustion. The nine FA samples examined from these technologies were characterised physically, chemically and in terms of their reactivity. Tests were also carried out to determine...

... 2017 ICE Publishing: All rights reserved 2017 crystallography/crystal structure grinding reactivity Quartz, a common non-metallic mineral, is widely distributed in all kinds of ores and is the main component of silicon tailings. In recent years, there has been growing concern...