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Industries related to the acquiring of building materials may soon face a shortage of natural resources and an associated increase in costs of their acquisition. Therefore, it is necessary to look for possible ways to reduce the exploitation of natural resources and instead use recycled raw materials. Such policies fit into one of the most important trends in modern construction, which is sustainable...
The paper is devoted to the research into the consistence and air content of fresh cement composites. The experiment included 24 mixtures prepared on the basis of CEM I 42.5R Portland cement and natural quartz sand of 0÷2 mm particle size. Five types of polypropylene fibre were used, with lengths ranging from 3 to 38 mm. The effect of fibre content was measured for four basic formulas: A – basic mortars,...
The assumptions of the low-carbon economy and sustainable development in construction leads to the search for ecological solutions in materials whose production generates significant amounts of carbon dioxide. Cement substitution with waste glass powder used in building mortars is part of this trending solution. This paper describes the results on the selective properties of mortars containing powdered...
This article presents the results of a part of investigation on the performance of cement-based mortars subjected to omnidirectional freezing and thawing tests. Microstructural changes due to exposure of up to 732 freezing and thawing cycles are documented on Ordinary Portland Cement mortar of varied maturity. The results yielded by the Mercury Intrusion Porosimetry are used to assess the alterations...
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