{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,4,23]],"date-time":"2026-04-23T04:43:48Z","timestamp":1776919428552,"version":"3.51.2"},"reference-count":37,"publisher":"Emerald","issue":"8","license":[{"start":{"date-parts":[[2025,11,27]],"date-time":"2025-11-27T00:00:00Z","timestamp":1764201600000},"content-version":"vor","delay-in-days":17,"URL":"https:\/\/creativecommons.org\/licences\/by\/4.0\/"}],"funder":[{"name":"Funda\u00c3\u00a7\u00c3\u00a3o para a Ci\u00c3\u00aancia e a Tecnologia","award":["DOI: 10.54499\/2020.00828.CEECIND\/CP1590\/CT0004"],"award-info":[{"award-number":["DOI: 10.54499\/2020.00828.CEECIND\/CP1590\/CT0004"]}]},{"name":"Funda\u00c3\u00a7\u00c3\u00a3o para a Ci\u00c3\u00aancia e a Tecnologia","award":["DOI: 10.54499\/UIDB\/04708\/2020"],"award-info":[{"award-number":["DOI: 10.54499\/UIDB\/04708\/2020"]}]},{"name":"Funda\u00c3\u00a7\u00c3\u00a3o para a Ci\u00c3\u00aancia e a Tecnologia","award":["DOI: 10.54499\/UIDP\/04708\/2020"],"award-info":[{"award-number":["DOI: 10.54499\/UIDP\/04708\/2020"]}]},{"DOI":"10.13039\/501100018986","name":"Institute of Research and Development in Structures and Construction","doi-asserted-by":"crossref","id":[{"id":"10.13039\/501100018986","id-type":"DOI","asserted-by":"crossref"}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"published-print":{"date-parts":[[2025,12,15]]},"abstract":"<jats:sec>\n                    <jats:title>Purpose<\/jats:title>\n                    <jats:p>This work presents the results of an extensive experimental campaign with 240 concrete specimens, with and without pozzolan additive, to assess the effects of internal expansion reactions on the strength and deformation properties of structural concrete due to alkali-silica reactions.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Design\/methodology\/approach<\/jats:title>\n                    <jats:p>The samples were submerged in a 1\u00a0N NaOH solution for 242\u00a0days at a constant temperature of 60\u00b0C, after being exposed for 30\u00a0days to a 1\u00a0N NaOH solution at 80\u00b0C. The concrete mixtures incorporated two types of cement: PC-V (additive-free) and PC-IV (with a higher concentration of pozzolanic additives). The only source of reactivity in the aggregates used comes from the coarse aggregate, which is highly reactive microcrystalline and macrogranular quartz. The design compressive characteristic strength of the concrete was set at 35\u00a0MPa.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Findings<\/jats:title>\n                    <jats:p>The results obtained show that the internal expansion reactions had different impacts on the mechanical properties of the concrete, with the modulus of elasticity being the most influenced and the least sensitive to the type of cement used. PC-IV and PC-V samples exhibited a drop of 36% and 38% in the respective modulus of elasticity. For compressive strength, PC-IV samples had a greater loss in compressive strength value than those made with cement without addition, \u22126.8% and \u221218.6%, respectively.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Originality\/value<\/jats:title>\n                    <jats:p>This is one of the first studies with such an extensive experimental campaign to analyze the effect of internal expansion reactions on the mechanical properties of concrete with and without pozzolan, and thus fill an existing gap in the literature.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1108\/ijbpa-05-2025-0111","type":"journal-article","created":{"date-parts":[[2025,11,27]],"date-time":"2025-11-27T05:16:36Z","timestamp":1764220596000},"page":"124-139","source":"Crossref","is-referenced-by-count":1,"title":["Effect of alkali\u2013silica reaction on the mechanical properties of concrete with and without pozzolan"],"prefix":"10.1108","volume":"43","author":[{"ORCID":"https:\/\/orcid.org\/0009-0000-8816-7216","authenticated-orcid":true,"given":"Maria Eduarda","family":"Maia","sequence":"first","affiliation":[{"name":"Catholic University of Pernambuco Department of Civil Engineering, , ,","place":["Recife, Brazil"]}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-4471-4294","authenticated-orcid":true,"given":"Fernando Artur","family":"Nogueira Silva","sequence":"additional","affiliation":[{"name":"Catholic University of Pernambuco Department of Civil Engineering, , ,","place":["Recife, Brazil"]}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-0014-3875","authenticated-orcid":true,"given":"Nicole Pamela da Silva","family":"Nascimento","sequence":"additional","affiliation":[{"name":"Catholic University of Pernambuco Department of Civil Engineering, , ,","place":["Recife, Brazil"]}]},{"given":"Ant\u00f3nio","family":"Azevedo","sequence":"additional","affiliation":[{"name":"Institute Federal of Pernambuco Department of Civil Engineering, , ,","place":["Recife, Brazil"]}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-1026-4523","authenticated-orcid":true,"given":"J.M.P.Q.","family":"Delgado","sequence":"additional","affiliation":[{"name":"CONSTRUCT-BPG, Universidade do Porto Faculdade de Engenharia Department of Civil Engineering, , ,","place":["Porto, Portugal"]}]}],"member":"140","published-online":{"date-parts":[[2025,11,10]]},"reference":[{"key":"2025120823573874200_ref001","volume-title":"Report 211-1: Standard Practice for Selecting Proportions for Normal, Heavyweight and Mass Concrete, Report 211.2: Standard Practice for Selecting Proportions for Lightweight Concrete, Report 211.3R: Guide for Selecting Proportions for No-Slump Concrete","author":"ACI Committee 211","year":"2012"},{"issue":"2","key":"2025120823573874200_ref002","doi-asserted-by":"publisher","first-page":"123","DOI":"10.1016\/s0950-0618(02)00009-0","article-title":"The effect of alkali reactivity on the mechanical properties of concrete","volume":"17","author":"Ahmed","year":"2003","journal-title":"Construction and Building Materials"},{"key":"2025120823573874200_ref003","doi-asserted-by":"publisher","first-page":"13","DOI":"10.1016\/j.cemconres.2014.01.001","article-title":"Effectiveness of the accelerated mortar bar test to detect rapid reactive aggregates (including their pessimum content) and slowly reactive aggregates","volume":"58","author":"Alejos","year":"2014","journal-title":"Cement and Concrete Research"},{"key":"2025120823573874200_ref004","volume-title":"Alkali-Aggregate Reaction and Structural Damage to Concrete \u2013 Engineering Assessment, Repair and Management","author":"Blight","year":"2011","edition":"1st ed."},{"key":"2025120823573874200_ref005","article-title":"Effect of AAR on shear capacity of beams, without shear reinforcement","author":"Cope","year":"1992"},{"key":"2025120823573874200_ref006","doi-asserted-by":"publisher","DOI":"10.1016\/j.conbuildmat.2020.120893","article-title":"Feasibility of basalt and glass FRP mesh for strengthening and confinement concrete damage due to ASR-expansion","volume":"266","author":"Diab","year":"2021","journal-title":"Construction and Building Materials"},{"key":"2025120823573874200_ref007","volume-title":"Structural Effects of Alkali Aggregate Reaction","author":"Doran","year":"1992"},{"key":"2025120823573874200_ref008","volume-title":"Metamorphic Rocks: A Classification and Glossary of Terms: Recommendations of the International Union of Geological Sciences Subcommission on the Systematics of Metamorphic Rocks","author":"Fettes","year":"2007"},{"key":"2025120823573874200_ref009","article-title":"Alkali-aggregate reaction in nuclear concrete structures. 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