کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
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260723 | 503668 | 2009 | 7 صفحه PDF | دانلود رایگان |
In this experimental work, which is aimed at a subsequent industrial application, the results of a study of the effects of environmental temperatures on aggregate’s properties and on the resulting mortar workability are presented. For this work, several physical properties of fine aggregates (sand of 5 and 2 mm) were defined, in order to establish the influence of temperature on their performance and on the resulting mortar’s workability. In this study, three climatic conditions were used: reference, hot weather and cold weather conditions, both in terms of temperature and relative humidity. The results show that mortar workability is a function of the temperature of the aggregates and of their physical properties, such as absorption and friction; in general, the best results are attained under the reference conditions (20 °C). These results may be useful for the optimization tools development in ready-mix concrete production.
Journal: Construction and Building Materials - Volume 23, Issue 5, May 2009, Pages 1808–1814