- Tytuł:
- Investigating freeze-proof durability of air-entrained C30 recycled coarse aggregate concrete
- Autorzy:
-
Deng, Xianghui
Liu, Yiyuan
Wang, Rui - Powiązania:
- https://bibliotekanauki.pl/articles/1852544.pdf
- Data publikacji:
- 2021
- Wydawca:
- Polska Akademia Nauk. Czytelnia Czasopism PAN
- Tematy:
-
domieszka napowietrzająca
kruszywo gruboziarniste
kruszywo z recyklingu
cykl zamrażanie-odmrażanie
mrozoodporność betonu
air-entraining admixture
recycled aggregate
coarse aggregate
concrete
freeze-thaw cycle
freeze-proof durability - Opis:
- 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.
- Źródło:
-
Archives of Civil Engineering; 2021, 67, 2; 507-524
1230-2945 - Pojawia się w:
- Archives of Civil Engineering
- Dostawca treści:
- Biblioteka Nauki
Artykuł