Investigating freeze-proof durability of air-entrained C30 recycled coarse aggregate concrete

• Autorzy: Deng Xianghui , Liu Yiyuan , Wang Rui

Identyfikatory

DOI

10.24425/ace.2021.137182

• Języki publikacji: EN

Abstrakty

EN

Incorporation of air-entraining agent has improved recycled concrete freeze-proof durability. However, it is very lacking to study the role of the entraining agent. In this paper, the influence of an air-entraining agent on freeze-proof durability for the ordinary C30 recycled coarse aggregate (RCA) concrete and air-entrained C30 RCA concrete was investigated with the laboratory comparative tests. The mass loss, the dynamic modulus of elasticity, ultrasonic wave velocity and cubic compressive strength were measured during freeze-thaw cycles. The test result showed the concrete’s performance was similar to the ordinary concrete and was better than that of other recycled concretes when the content of RCA was 50% and 0.03% of air-entraining agent was added for C30 RCA concrete. Meanwhile, the addition of air-entraining agent has an improved effect on the performance of recycled concrete, but the effect was limited.

Słowa kluczowe

EN

air-entraining admixture; recycled aggregate; coarse aggregate; concrete; freeze-thaw cycle; concrete frost resistance

PL

domieszka napowietrzająca; kruszywo gruboziarniste; kruszywo recyklingowe; cykl zamrażanie-odmrażanie; mrozoodporność betonu

• Wydawca: Komitet Inżynierii Lądowej i Wodnej PAN ; Politechnika Warszawska, Wydział Inżynierii Lądowej
• Czasopismo: Archives of Civil Engineering
• Rocznik: 2021
• Tom: Vol. 67, nr 2
• Strony: 507--524
• Opis fizyczny: Bibliogr. 16 poz., il., tab.

Twórcy

autor

Deng Xianghui

• School of Civil and Architecture Engineering, Xi’an Technological University, Xi’an, China

• https://orcid.org/0000-0001-6996-9758

autor

Liu Yiyuan

• School of Civil and Architecture Engineering, Xi’an Technological University, Xi’an, China

• https://orcid.org/0000-0002-4585-7804

autor

Wang Rui

• School of Civil and Architecture Engineering, Xi’an Technological University, Xi’an, China

• https://orcid.org/0000-0003-2609-4255

Bibliografia

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