THE INFLUENCE OF GRANULOMETRY OF VELLA SANDS ON THE PROPERTIES OF REPAIRED MODIFIED COMPOSITIONS
Objectives. Study of the problems associated with the possibility of the effective use of substandard sand dunes of the Shelkovskoye deposit as a mineral additive for the production of fine-ground binders and the enrichment of rock crushing screenings.Method. They are based on the established princi...
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Dagestan State Technical University
2019-05-01
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| Series: | Вестник Дагестанского государственного технического университета: Технические науки |
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| Online Access: | https://vestnik.dgtu.ru/jour/article/view/605 |
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| author | M. R. Nakhaev M. Sh. Salamanova A. A. Uzaeva |
| author_facet | M. R. Nakhaev M. Sh. Salamanova A. A. Uzaeva |
| author_sort | M. R. Nakhaev |
| collection | DOAJ |
| description | Objectives. Study of the problems associated with the possibility of the effective use of substandard sand dunes of the Shelkovskoye deposit as a mineral additive for the production of fine-ground binders and the enrichment of rock crushing screenings.Method. They are based on the established principles of the theory of hardening repair modified compositions with the integrated use of vibroactivated mineral and polymer components, and in particular, the filled system “Portland cement - sandstone - C-3”, as well as mathematical logic and technology of composite materials. The studies were carried out taking into account current state standards and recommendations.Result. The results of the study of local sand dunes and rock crushing screenings are presented for obtaining enriched aggregates with optimal granulometry and properties. Repair compositions were obtained with the use of polymineral sand sand, which are part of the activated binder as a filler, and which are one of the main components of the enriched aggregate.Conclusion. The optimal formulation of enriched sand was established, with removal of 60% of the fraction 2.5 - 1.25 mm from the crushing screenings and the addition of 40% of the fraction of 0.315 - 0.14 mm of sand sand, which significantly reduces the void content of the aggregate to 38.8% and the water requirement of the aggregate to 6.5%, significantly improving the properties of the repair compositions obtained with their use. It has been proved that the studied sand dunes with a characteristic mineralogical, chemical and particle size distribution are an effective component. |
| format | Article |
| id | doaj-art-8470859154be4c68a2ae486fe8e172ab |
| institution | Kabale University |
| issn | 2073-6185 2542-095X |
| language | Russian |
| publishDate | 2019-05-01 |
| publisher | Dagestan State Technical University |
| record_format | Article |
| series | Вестник Дагестанского государственного технического университета: Технические науки |
| spelling | doaj-art-8470859154be4c68a2ae486fe8e172ab2025-08-20T03:57:21ZrusDagestan State Technical UniversityВестник Дагестанского государственного технического университета: Технические науки2073-61852542-095X2019-05-0145321222010.21822/2073-6185-2018-45-3-212-220463THE INFLUENCE OF GRANULOMETRY OF VELLA SANDS ON THE PROPERTIES OF REPAIRED MODIFIED COMPOSITIONSM. R. Nakhaev0M. Sh. Salamanova1A. A. Uzaeva2M.D.Millionshtchikov Grozny State Oil Technical University.M.D.Millionshtchikov Grozny State Oil Technical University.Complex Research Institute Ibragimova of the Russian Academy of Sciences.Objectives. Study of the problems associated with the possibility of the effective use of substandard sand dunes of the Shelkovskoye deposit as a mineral additive for the production of fine-ground binders and the enrichment of rock crushing screenings.Method. They are based on the established principles of the theory of hardening repair modified compositions with the integrated use of vibroactivated mineral and polymer components, and in particular, the filled system “Portland cement - sandstone - C-3”, as well as mathematical logic and technology of composite materials. The studies were carried out taking into account current state standards and recommendations.Result. The results of the study of local sand dunes and rock crushing screenings are presented for obtaining enriched aggregates with optimal granulometry and properties. Repair compositions were obtained with the use of polymineral sand sand, which are part of the activated binder as a filler, and which are one of the main components of the enriched aggregate.Conclusion. The optimal formulation of enriched sand was established, with removal of 60% of the fraction 2.5 - 1.25 mm from the crushing screenings and the addition of 40% of the fraction of 0.315 - 0.14 mm of sand sand, which significantly reduces the void content of the aggregate to 38.8% and the water requirement of the aggregate to 6.5%, significantly improving the properties of the repair compositions obtained with their use. It has been proved that the studied sand dunes with a characteristic mineralogical, chemical and particle size distribution are an effective component.https://vestnik.dgtu.ru/jour/article/view/605granulometric compositionsand sandsmineral additivescrushing screeningsen-riched aggregaterepair compositionfineness modulusvibration activationsuperplasticizersand en-richmenttechnological procedure |
| spellingShingle | M. R. Nakhaev M. Sh. Salamanova A. A. Uzaeva THE INFLUENCE OF GRANULOMETRY OF VELLA SANDS ON THE PROPERTIES OF REPAIRED MODIFIED COMPOSITIONS Вестник Дагестанского государственного технического университета: Технические науки granulometric composition sand sands mineral additives crushing screenings en-riched aggregate repair composition fineness modulus vibration activation superplasticizer sand en-richment technological procedure |
| title | THE INFLUENCE OF GRANULOMETRY OF VELLA SANDS ON THE PROPERTIES OF REPAIRED MODIFIED COMPOSITIONS |
| title_full | THE INFLUENCE OF GRANULOMETRY OF VELLA SANDS ON THE PROPERTIES OF REPAIRED MODIFIED COMPOSITIONS |
| title_fullStr | THE INFLUENCE OF GRANULOMETRY OF VELLA SANDS ON THE PROPERTIES OF REPAIRED MODIFIED COMPOSITIONS |
| title_full_unstemmed | THE INFLUENCE OF GRANULOMETRY OF VELLA SANDS ON THE PROPERTIES OF REPAIRED MODIFIED COMPOSITIONS |
| title_short | THE INFLUENCE OF GRANULOMETRY OF VELLA SANDS ON THE PROPERTIES OF REPAIRED MODIFIED COMPOSITIONS |
| title_sort | influence of granulometry of vella sands on the properties of repaired modified compositions |
| topic | granulometric composition sand sands mineral additives crushing screenings en-riched aggregate repair composition fineness modulus vibration activation superplasticizer sand en-richment technological procedure |
| url | https://vestnik.dgtu.ru/jour/article/view/605 |
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