{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,10,22]],"date-time":"2025-10-22T18:01:07Z","timestamp":1761156067966},"reference-count":30,"publisher":"FapUNIFESP (SciELO)","issue":"1","content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Rev. IBRACON Estrut. Mater."],"published-print":{"date-parts":[[2016,2]]},"abstract":"<jats:p>Several cases of alkali-silica reaction involving granitic aggregates have been diagnosed in damaged concrete structures in Portugal. Nonetheless, this kind of rock is usually regarded as slow\/late reactive or even non-reactive to alkalis. Granitic rocks are widely exploited in Northern and Central Portugal, representing almost half of the produced aggregates in this country. Project IMPROVE rose from the need to accurately diagnose the potential reactivity of granites to alkalis. The study involved about forty granites collected from different regions in Portugal, from which the results of eight samples are being presented in this paper. The tests carried out include the petrographic analyses of the aggregates and mortar and concrete expansion tests. It was concluded that the content of microcrystalline quartz correlates better with the results of AAR-4.1 than with the other expansion tests.<\/jats:p>","DOI":"10.1590\/s1983-41952016000100005","type":"journal-article","created":{"date-parts":[[2016,2,17]],"date-time":"2016-02-17T23:38:46Z","timestamp":1455752326000},"page":"66-74","source":"Crossref","is-referenced-by-count":3,"title":["Potential reactivity of granitic rocks. Petrographic characterization vs accelerated expansion tests"],"prefix":"10.1590","volume":"9","author":[{"given":"V.","family":"RAMOS","sequence":"first","affiliation":[{"name":"University of Porto, Portugal"}]},{"given":"I.","family":"FERNANDES","sequence":"additional","affiliation":[{"name":"University of Porto, Portugal; University of Lisbon, Portugal"}]},{"given":"A. S.","family":"SILVA","sequence":"additional","affiliation":[{"name":"National Laboratory for Civil Engineering, Portugal"}]},{"given":"D.","family":"SOARES","sequence":"additional","affiliation":[{"name":"National Laboratory for Civil Engineering, Portugal"}]},{"given":"F.","family":"NORONHA","sequence":"additional","affiliation":[{"name":"University of Porto, Portugal; University of Porto, Portugal"}]}],"member":"530","reference":[{"key":"ref1","first-page":"40","article-title":"Some observations on the mechanism of alkali-aggregate reactions","volume":"205","author":"BROWN LS","year":"1955","journal-title":"ASTM Bulletin"},{"key":"ref2","doi-asserted-by":"crossref","first-page":"363","DOI":"10.1130\/0016-7606(1964)75[363:UEIQGO]2.0.CO;2","article-title":"Undulatory extinction in quartz grains of some Chilean granitic rocks of different ages","volume":"75","author":"DEHILLS SM","year":"1964","journal-title":"Geological Society of America Bulletin"},{"key":"ref3","doi-asserted-by":"crossref","first-page":"135","DOI":"10.1016\/0013-7952(73)90042-2","article-title":"An evaluation of some common Indian rocks with special reference to alkali-aggregate reactions","volume":"7","author":"GOGTE BS","year":"1973","journal-title":"Engineering Geology"},{"key":"ref4","series-title":"Handbook of concrete aggregates: a petrographic and technological evaluation (Building Materials Science Series)","author":"DOLAR-MANTUANI LMM","year":"1983"},{"key":"ref5","first-page":"383","author":"GRATTAN-BELLEW PE","year":"1992"},{"key":"ref6","author":"TIECHER F","year":"2012"},{"key":"ref7","doi-asserted-by":"crossref","first-page":"949","DOI":"10.1016\/0008-8846(92)90119-G","article-title":"ASR of concrete aggregate quarried from a fault zone: results and petrographic interpretation of accelerated mortar bar tests","volume":"220","author":"KERRICK D","year":"1992","journal-title":"Cement and Concrete Research"},{"key":"ref8","author":"THOMSON ML","year":"1994"},{"key":"ref9","doi-asserted-by":"crossref","first-page":"1278","DOI":"10.1007\/s10853-007-2175-8","article-title":"Relationship between aggregate microstructure and mortar expansion. 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Utiliza\u00e7\u00e3o de cinzas volantes e metacaulino para a sua preven\u00e7\u00e3o","author":"SANTOS SILVA A","year":"2005"},{"key":"ref15","series-title":"RILEM recommendations for the prevention of damage by alkali-aggregate reactions in new concrete structures, State-of-the-art report of the RILEM Technical Committee 219-ACS, RILEM State-of-the-Art Reports","first-page":"35","volume-title":"Detection of potential alkali-reactivity, Part 1: petrographic examination method for aggregates","volume":"17","author":"NIXON PJ","year":"2016"},{"key":"ref16","series-title":"Inertes para argamassas e bet\u00f5es - determina\u00e7\u00e3o da reactividade potencial com os \u00e1lcalis. An\u00e1lise petrogr\u00e1fica. 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