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Abstract

In this study, the results of experiment research on building mortars based on dry mixtures with the use of granite dust are given. It also shows the possibilities of their industrial release. In the conditions of energy resources shortage, gradual exhaustion of natural raw materials, aggravation of environmental problems, an important direction in the production of building mixtures is the development of mixes with waste materials from various industries. In particular, granite dust, which simultaneously allows to rationally use natural mineral material and solve environmental problems. Based on the obtained data, experimental and statistical models of physical and mechanical properties of fresh and hardened mortar are constructed and ways of optimizing their compositions and improving the properties of mortars are analyzed. It is established that the use of granite dust and some additives provides high standardized parameters for mortar mixture and bricklaying process, including plasticity, compressive strength and others at the low level of cement consumption. Fresh mortar mixtures have a prolonged slump retention.

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Authors and Affiliations

Grzegorz Prokopski
ORCID: ORCID
Vitaliy Marchuk
ORCID: ORCID
Andriy Huts
ORCID: ORCID
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Abstract

The article presents the results of experimental studies of the influence of granite dust on the properties and durability of concrete. The use of industrial waste – granite dust, in the processing of granite into crushed stone, at the same time allows the rational use of natural resources and solve environmental problems. The possibility of improving the construction and technical properties of concrete filled with granite dust is considered. Experimental-statistical models of technological and physical-mechanical properties of concretes are presented and analyzed, ways of their improvement are shown. The complex of strength properties, water absorption, frost resistance, and durability of such concrete have been studied. The studied concrete are characterized by a more intensive set of strength and obtaining mixtures of “sticky” consistency. Due to the partial replacement of sand by granite dust, the microstructure of the cement matrix is compacted, which is the main reason for reducing porosity and increasing the durability of structures based on the proposed concrete.
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Authors and Affiliations

Grzegorz Prokopski
1
ORCID: ORCID
Andriy Huts
1
ORCID: ORCID
Vitaliy Marchuk
2
ORCID: ORCID

  1. Rzeszów University of Technology, The Faculty of Civil and Environmental Engineering and Architecture, Poznanska 2, 35-084 Rzeszów, Poland
  2. National University of Water and Environmental Engineering, Institute of Building and Architecture, Chornovola 49, 33-000 Rivne, Ukraine

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