000109542 001__ 109542
000109542 005__ 20230519145609.0
000109542 0247_ $$2doi$$a10.6036/10079
000109542 0248_ $$2sideral$$a127160
000109542 037__ $$aART-2021-127160
000109542 041__ $$aeng
000109542 100__ $$0(orcid)0000-0003-0160-4378$$aPerez Benedicto, Jose Angel
000109542 245__ $$aInfluence of recycled aggregate quality from precast rejection on mechanical properties of self-compacting concrete
000109542 260__ $$c2021
000109542 5060_ $$aAccess copy available to the general public$$fUnrestricted
000109542 5203_ $$aThe use of coarse aggregates from crushing pre-existing concrete in the manufacturing of new concrete needs experimental results to validate its influence in the properties of the new concrete elements.
In the present study we assessed the impact of using different proportions of replacement up to 100% of natural aggregates with recycled aggregates in the concrete properties; moreover, the effect of pre-treatments of pre-saturation, washing and the aggregates’ source (from precast concrete rejected pieces and construction and demolition waste) was analysed. The best results were obtained with dry and washed recycled aggregates, the compressive strength increment was between the 8 and 17% compared to conventional concrete. Results also pointed out that recycled aggregate that exclusively comes from precast concrete pieces lead to a better concrete mechanical characteristic than the aggregates which origin is construction and demolition waste. In addition, a clear relationship between the percentage of recycled aggregate substitution and the workability and mechanical performance of self-compacting concrete is observed. The results presented in this paper allow to state that precast concrete factories can recycle their rejected elements into recycled coarse aggregates for manufacturing new products, this will allow to protect the environment by reducing the need of raw material consumption and the C&DW landfill.
000109542 540__ $$9info:eu-repo/semantics/openAccess$$aby-nc$$uhttp://creativecommons.org/licenses/by-nc/3.0/es/
000109542 590__ $$a2.07$$b2021
000109542 592__ $$a0.16$$b2021
000109542 594__ $$a1.3$$b2021
000109542 591__ $$aENGINEERING, MULTIDISCIPLINARY$$b51 / 92 = 0.554$$c2021$$dQ3$$eT2
000109542 593__ $$aEngineering (miscellaneous)$$c2021$$dQ4
000109542 655_4 $$ainfo:eu-repo/semantics/article$$vinfo:eu-repo/semantics/publishedVersion
000109542 700__ $$adel Rio Merino, Mercedes
000109542 700__ $$0(orcid)0000-0002-5585-2126$$aLopez Julian, Pedro Luis$$uUniversidad de Zaragoza
000109542 700__ $$0(orcid)0000-0002-1342-8482$$aSalesa Bordanaba, Angel
000109542 700__ $$0(orcid)0000-0003-2591-1540$$aAcero Oliete, Alejandro
000109542 7102_ $$12000$$2428$$aUniversidad de Zaragoza$$bDpto. Ciencias de la Tierra$$cÁrea Geodinámica Interna
000109542 773__ $$g96, 4 (2021), 407-414$$pDyna (Bilbao)$$tDyna$$x0012-7361
000109542 8564_ $$s620885$$uhttps://zaguan.unizar.es/record/109542/files/texto_completo.pdf$$yVersión publicada
000109542 8564_ $$s3464320$$uhttps://zaguan.unizar.es/record/109542/files/texto_completo.jpg?subformat=icon$$xicon$$yVersión publicada
000109542 909CO $$ooai:zaguan.unizar.es:109542$$particulos$$pdriver
000109542 951__ $$a2023-05-18-16:07:16
000109542 980__ $$aARTICLE