Zobrazeno 1 - 10
of 3 535
pro vyhledávání: '"Sulfate attack"'
Publikováno v:
Alexandria Engineering Journal, Vol 109, Iss , Pp 831-840 (2024)
The mechanical properties of concrete structures change under repeated sulfate salt erosion, a transformation observable through the evolving energy characteristics during compression. This study conducts uniaxial compression tests on ordinary concre
Externí odkaz:
https://doaj.org/article/173c873a378940b3b8b96539e7e59331
Publikováno v:
Engineering, Vol 41, Iss , Pp 130-152 (2024)
The rail transit in sulfate-rich areas faces the combined effects of stray current and salt corrosion; however, the sulfate ion transport and concrete degradation mechanisms under such conditions are still unclear. To address this issue, novel sulfat
Externí odkaz:
https://doaj.org/article/9ba70285a0154c40a2f5186c5d2a0d72
Publikováno v:
Discover Sustainability, Vol 5, Iss 1, Pp 1-12 (2024)
Abstract This paper aimed to investigate the durability of ambient-cured fly ash-phosphogypsum blended geopolymer mortar (GPM) when exposed to a water and sulfate environment at different durations. Water absorption, porosity, and sulfate resistance
Externí odkaz:
https://doaj.org/article/a9da8cfe0c3b4ad085df07674b551a70
Autor:
HU Chunhua, MA Teng
Publikováno v:
Taiyuan Ligong Daxue xuebao, Vol 55, Iss 5, Pp 874-880 (2024)
Purposes This work has been carried out to determine the optimal composite mix ratio of eggshell powder and metakaolin as cement replacement materials for simultaneously enhancing the compressive strength of cement mortar and the sulfate resistance o
Externí odkaz:
https://doaj.org/article/6a63790ba090478bb0a7f549b7372512
Publikováno v:
工程科学学报, Vol 46, Iss 8, Pp 1358-1369 (2024)
The application of iron tailing powder to concrete as a mineral admixture promotes high-value use of solid waste and energy saving and emission reduction. However, most studies on the durability of iron tailing powder concrete only consider single co
Externí odkaz:
https://doaj.org/article/255ddca3855849b5be4506f8a46059d5
Publikováno v:
Scientific Reports, Vol 14, Iss 1, Pp 1-23 (2024)
Abstract This study aims to enhance the durability, cost-effectiveness, and sustainability of recycled fine aggregate concrete (RFAC) subjected to the combined effects of wet-dry cycles and sulfate erosion. Dry–wet cycle tests were conducted in RFA
Externí odkaz:
https://doaj.org/article/176b1ac1fcc34587924aafcf1a6bf093
Publikováno v:
Case Studies in Construction Materials, Vol 21, Iss , Pp e04050- (2024)
Sulfate attack precipitates instability and degradation within calcium silicate (aluminate) hydrate (C-(A)-S-H) gel, the primary binding phase in cementitious materials. This degradation intricately correlates with the clinker phase composition, part
Externí odkaz:
https://doaj.org/article/ca6191ddebd94619b17d7ba3b7e3f70e
Publikováno v:
Case Studies in Construction Materials, Vol 21, Iss , Pp e03894- (2024)
The purpose of the study is to investigate the sulfate resistance of portland-dolomite cement (PDC) with varying dolomite contents, when exposed to sodium sulfate solution at 5 ℃ and 20 ℃. Visual appearance, expansion, mass change, and compressiv
Externí odkaz:
https://doaj.org/article/890232bf2d4048e1826214246ca14928