Study of Frost Resistance of 50 Years Concrete Exposed to Saline Areas

Autor: Zheng Mao Ye, Yan Ping Lv, De Cheng Zhang
Rok vydání: 2013
Předmět:
Zdroj: Applied Mechanics and Materials. :1341-1346
ISSN: 1662-7482
DOI: 10.4028/www.scientific.net/amm.275-277.1341
Popis: The Hong Run petrochemical oil depot is located in a saline area in the north of Weifang.This area is severe cold in winter and has large temperature span throughout a year. Due to the area's rigorous environmental conditions, concrete with 50 years durability and strength grade of C40 was fabricated with the ordinary Portland cement, high performance superfine mineral powder and high performance pumping agent. Tests using the onsite concrete samples show that concrete mechanical properties meet the design requirements. After 300 freezing and thawing cycles including accelerated freezing thawing method and single-side freezing thawing method, the quality loss rate and relative dynamic modulus both comply with the design requirements. This suggests that the sample concrete has excellent frost resistance ability.
Databáze: OpenAIRE