Control Over the Reactivity of Aggregates and Mineral Additives in Portland Cement Compositions by Electron Beam and Heat Treatment
—The effect of electron-beam treatment (EBT) and heat treatment (HT) of silica-based aggregates and mineral additives in Portland cement mortars on the intensity of alkali-silica reactions (ASRs) with their participation, which are dangerous for concrete structures, is studied. It is established tha...
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| Veröffentlicht in: | Glass physics and chemistry 2023-02, Vol.49 (1), p.87-91 |
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| container_title | Glass physics and chemistry |
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| creator | Brykov, A. S. Myakin, S. V. Sychev, M. M. |
| description | —The effect of electron-beam treatment (EBT) and heat treatment (HT) of silica-based aggregates and mineral additives in Portland cement mortars on the intensity of alkali-silica reactions (ASRs) with their participation, which are dangerous for concrete structures, is studied. It is established that heating to a temperature of 900°C and the EBT of sand free of alkali-reactive inclusions, leads to a significant increase in the reactivity of cement-sand mortar mixtures, which increases with an increase in the absorbed dose and a corresponding increase in the content of acid hydroxyl groups on the sand surface. In the case of sand containing reactive inclusions of chalcedony, EBT leads to an increase in reactivity, and HT, to a decrease. Treatment of microsilica and metakaolin mineral additives capable of ASR inhibition leads to an increase in their inhibitory effect. The results obtained are promising for modeling the expansion of concrete as a result of ASR and increasing their resistance to fracture in alkaline media. |
| doi_str_mv | 10.1134/S1087659622600922 |
| format | Article |
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S. ; Myakin, S. V. ; Sychev, M. M.</creator><creatorcontrib>Brykov, A. S. ; Myakin, S. V. ; Sychev, M. M.</creatorcontrib><description>—The effect of electron-beam treatment (EBT) and heat treatment (HT) of silica-based aggregates and mineral additives in Portland cement mortars on the intensity of alkali-silica reactions (ASRs) with their participation, which are dangerous for concrete structures, is studied. It is established that heating to a temperature of 900°C and the EBT of sand free of alkali-reactive inclusions, leads to a significant increase in the reactivity of cement-sand mortar mixtures, which increases with an increase in the absorbed dose and a corresponding increase in the content of acid hydroxyl groups on the sand surface. In the case of sand containing reactive inclusions of chalcedony, EBT leads to an increase in reactivity, and HT, to a decrease. Treatment of microsilica and metakaolin mineral additives capable of ASR inhibition leads to an increase in their inhibitory effect. The results obtained are promising for modeling the expansion of concrete as a result of ASR and increasing their resistance to fracture in alkaline media.</description><identifier>ISSN: 1087-6596</identifier><identifier>EISSN: 1608-313X</identifier><identifier>DOI: 10.1134/S1087659622600922</identifier><language>eng</language><publisher>Moscow: Pleiades Publishing</publisher><subject>Additives ; Aggregates ; Alkali-silica reaction inhibitors ; Cement ; Ceramics ; Characterization and Evaluation of Materials ; Chemistry and Materials Science ; Composites ; Concrete structures ; Electron beams ; Glass ; Heat treatment ; Hydroxyl groups ; Inclusions ; Materials Science ; Metakaolin ; Mortars (material) ; Natural Materials ; Physical Chemistry ; Portland cements ; Sand</subject><ispartof>Glass physics and chemistry, 2023-02, Vol.49 (1), p.87-91</ispartof><rights>Pleiades Publishing, Ltd. 2023. ISSN 1087-6596, Glass Physics and Chemistry, 2023, Vol. 49, No. 1, pp. 87–91. © Pleiades Publishing, Ltd., 2023. Russian Text © The Author(s), 2023, published in Fizika i Khimiya Stekla.</rights><lds50>peer_reviewed</lds50><woscitedreferencessubscribed>false</woscitedreferencessubscribed><cites>FETCH-LOGICAL-c268t-aacf05a926c6ecdca7fc0cd6d6cc15981aa54beb801a400869e8a6065bf01fd33</cites></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://link.springer.com/content/pdf/10.1134/S1087659622600922$$EPDF$$P50$$Gspringer$$H</linktopdf><linktohtml>$$Uhttps://link.springer.com/10.1134/S1087659622600922$$EHTML$$P50$$Gspringer$$H</linktohtml><link.rule.ids>314,780,784,27924,27925,41488,42557,51319</link.rule.ids></links><search><creatorcontrib>Brykov, A. S.</creatorcontrib><creatorcontrib>Myakin, S. V.</creatorcontrib><creatorcontrib>Sychev, M. M.</creatorcontrib><title>Control Over the Reactivity of Aggregates and Mineral Additives in Portland Cement Compositions by Electron Beam and Heat Treatment</title><title>Glass physics and chemistry</title><addtitle>Glass Phys Chem</addtitle><description>—The effect of electron-beam treatment (EBT) and heat treatment (HT) of silica-based aggregates and mineral additives in Portland cement mortars on the intensity of alkali-silica reactions (ASRs) with their participation, which are dangerous for concrete structures, is studied. It is established that heating to a temperature of 900°C and the EBT of sand free of alkali-reactive inclusions, leads to a significant increase in the reactivity of cement-sand mortar mixtures, which increases with an increase in the absorbed dose and a corresponding increase in the content of acid hydroxyl groups on the sand surface. In the case of sand containing reactive inclusions of chalcedony, EBT leads to an increase in reactivity, and HT, to a decrease. Treatment of microsilica and metakaolin mineral additives capable of ASR inhibition leads to an increase in their inhibitory effect. The results obtained are promising for modeling the expansion of concrete as a result of ASR and increasing their resistance to fracture in alkaline media.</description><subject>Additives</subject><subject>Aggregates</subject><subject>Alkali-silica reaction inhibitors</subject><subject>Cement</subject><subject>Ceramics</subject><subject>Characterization and Evaluation of Materials</subject><subject>Chemistry and Materials Science</subject><subject>Composites</subject><subject>Concrete structures</subject><subject>Electron beams</subject><subject>Glass</subject><subject>Heat treatment</subject><subject>Hydroxyl groups</subject><subject>Inclusions</subject><subject>Materials Science</subject><subject>Metakaolin</subject><subject>Mortars (material)</subject><subject>Natural Materials</subject><subject>Physical Chemistry</subject><subject>Portland cements</subject><subject>Sand</subject><issn>1087-6596</issn><issn>1608-313X</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2023</creationdate><recordtype>article</recordtype><recordid>eNp1kMFLwzAUxoMoOKd_gLeA52qStml6nGU6YTLRCd5Kmr7Wji6ZSTbY2X_c1AkexMt7j_f9vu_BQ-iSkmtK4-TmhRKR8TTnjHFCcsaO0IhyIqKYxm_HYQ5yNOin6My5FQlMliUj9FkY7a3p8WIHFvt3wM8gle92nd9j0-BJ21popQeHpa7xY6fByh5P6roLUNh2Gj8Z6_tBLWAN2uPCrDfGBd1oh6s9nvagwg2Nb0Guv2NmID1e2lAHwzk6aWTv4OKnj9Hr3XRZzKL54v6hmMwjxbjwkZSqIanMGVccVK1k1iiial5zpWiaCyplmlRQCUJlQojgOQjJCU-rhtCmjuMxujrkbqz52ILz5cpsrQ4nSyZITgnN6EDRA6Wscc5CU25st5Z2X1JSDr8u__w6eNjB4wKrW7C_yf-bvgCIxYKM</recordid><startdate>20230201</startdate><enddate>20230201</enddate><creator>Brykov, A. 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S.</creatorcontrib><creatorcontrib>Myakin, S. V.</creatorcontrib><creatorcontrib>Sychev, M. M.</creatorcontrib><collection>CrossRef</collection><collection>Ceramic Abstracts</collection><collection>Engineered Materials Abstracts</collection><collection>Technology Research Database</collection><collection>Materials Research Database</collection><jtitle>Glass physics and chemistry</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Brykov, A. S.</au><au>Myakin, S. V.</au><au>Sychev, M. 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| subjects | Additives Aggregates Alkali-silica reaction inhibitors Cement Ceramics Characterization and Evaluation of Materials Chemistry and Materials Science Composites Concrete structures Electron beams Glass Heat treatment Hydroxyl groups Inclusions Materials Science Metakaolin Mortars (material) Natural Materials Physical Chemistry Portland cements Sand |
| title | Control Over the Reactivity of Aggregates and Mineral Additives in Portland Cement Compositions by Electron Beam and Heat Treatment |
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