Results 11 to 20 of about 42,334 (260)

Time-dependent mechanical behavior of tunnel linings under sulfate attack

open access: yesYantu gongcheng xuebao, 2021
The chemical-mechanical coupling effect of tunnel lining concrete under sulfate attack will lead to the degradation of its mechanical properties, and the degradation law is affected by many factors.
HE Wen-zheng 1, 2, XU Lin-sheng 1
doaj   +1 more source

Energy Evolution Characteristics and Performance Parameter Degradation of Rubber-Mixed Concrete in Sulfate Attack Environment

open access: yesAdvances in Civil Engineering, 2022
In order to study the sulfate resistance of rubber concrete (RC), the compressive strength test of RC with different contents (0%, 5%, 10%, and 15%) was carried out, and the proportion of RC with standard curing for 28 days was optimized.
Xiu-ling Chen
doaj   +1 more source

Properties evolution of calcium sulfoaluminate cement blended with ground granulated blast furnace slag suffered from sulfate attack

open access: yesJournal of Materials Research and Technology, 2022
In this work, sulfate resistance of calcium sulfoaluminate cement (CSAC) blended with ground granulated blast furnace slag (GGBFS) was studied. The mass change, compressive strength, corrosion resistance coefficient, relative dynamic elastic modulus and ...
Danying Gao   +4 more
doaj   +1 more source

Corrosion resistance of multiscale polypropylene fiber-reinforced concrete under sulfate attack

open access: yesCase Studies in Construction Materials, 2022
To study the corrosion resistance properties of multiscale polypropylene fiber-reinforced concrete (MPFRC) when subjected to sulfate attack, two types of fine polypropylene fiber (FPF) and one type of coarse polypropylene fiber (CPF) were selected for ...
Ninghui Liang   +4 more
doaj   +1 more source

Experimental Study on Sulfate Attack Resistance of Cement Slurry with UEA Expansive Agent [PDF]

open access: yesE3S Web of Conferences, 2019
Sulfate attack was one of the most important factors affecting the durability of cement slurry in mine corrosive environment. For water stopping and reinforcement projects in wellbore or working face under sulfate erosion environment, mineral admixtures ...
XU Ganggang, WANG Xiaodong, WANG Hai
doaj   +1 more source

Degradation of Shotcrete Materials Subjected to Sulfate and Chloride Attack in Varying Exposure Regimes

open access: yesAdvances in Civil Engineering, 2021
Durability of in situ shotcrete under external sulfate attack was investigated, taking into consideration the addition of mineral admixtures, along with the presence of chloride ions.
Ruiqiang Zhao   +4 more
doaj   +1 more source

Long-term thaumasite sulfate attack on mortar containing coral sand filler and SCMs exposed to sodium sulfate solution

open access: yesCase Studies in Construction Materials, 2023
The use of coral sand filler and supplementary cementitious materials partially replacing Portland cement facilitates the utilization of coral debris waste in oceanic construction as well as CO2 emission.
Xinjun Song, Ying Ma
doaj   +1 more source

Deterioration process of high belite cement paste exposed to sulfate attack, calcium leaching and the dual actions

open access: yesJournal of Materials Research and Technology, 2021
Deterioration process of high belite cement (HBC) paste with and without 30 wt.% fly ash, when exposed to sulfate attack, calcium leaching and the dual actions, was investigated by mass loss, expansion rate, porosity, corrosion depth, compressive ...
Chunmeng Jiang   +4 more
doaj   +1 more source

Fracture Mechanical Properties of Steel Fiber Reinforced Self-Compacting Concrete under Dry–Wet Cycle Sulfate Attack

open access: yesBuildings, 2022
Sulfate attack is the most common form of the durability damage of hydraulic concrete, and the performance degradation of cracked structural components is more significant at the position of water level change.
Junxia Liu   +4 more
doaj   +1 more source

Experimental study on sulfate resistance of shotcrete with different liquid accelerators

open access: yesCase Studies in Construction Materials, 2022
The shotcrete used as the initial lining of tunnel was easily damaged by sulfate attack in groundwater environment. The purpose of this study was mainly to explore the deterioration and mechanism of shotcrete mixed with different liquid accelerators ...
Renhe Yang   +7 more
doaj   +1 more source

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