Results 31 to 40 of about 3,590 (187)

Chemo-Mechanical Interactions in the Ettringite Induced Expansion of Sulfate-Bearing Soils

Geosciences, 2019
Expansive sulfate-bearing soils are frequently encountered in transportation and construction practices. These soils are often treated with a lime or cement stabilizer to improve the relevant qualities.
Zhongmei Wang, Pawan Sigdel, Liangbo Hu
doaj   +1 more source

Optimizing feather hydrolysate via machine learning for microbial recycling of waste concrete fines

Journal of Chemical Technology &Biotechnology, EarlyView.
Abstract BACKGROUND The concrete industry faces significant challenges from CO2 emissions and the disposal of waste concrete fines (WCF). Microbially induced calcite precipitation (MICP) can bind WCF into bioconcrete, but the high cost of commercial culture media hinders its application.
Henrietta Ottová, Barbora Malíková, Václav Nežerka, Petr Holeček, Dana Koňáková, Hana Stiborová   +5 more
wiley   +1 more source

Optimisation of Magnesium Oxide and Silica Fume Blend for Sulphate Soil Stabilisation

Ceramics
The utilisation of magnesium oxide-based binders (M) as an alternative to hydrated calcium silicate materials is a promising avenue for binding methodologies.
Jonathan Oti, Mansour Ebailila, Khaled Ehwailat, John Kinuthia   +3 more
doaj   +1 more source

Influence of natural fibers on physical, mechanical, and fire‐resistant properties of microconcrete

Structural Concrete, EarlyView.
Abstract This study examined the influence of natural fibers on the physical, mechanical, and fire‐resistant properties of microconcrete, in comparison with conventional polypropylene fibers used in cement composites. The fibers were characterized by FTIR and TGA/DSC to assess their composition and thermal stability, and FTIR was also performed after ...
Ivanka Netinger Grubeša, Sandra Juradin, Silvija Mrakovčić, Lidija Radovanović, Milica Vasić, Huseyin Bilgin   +5 more
wiley   +1 more source

The Influence of the Different Cementitious Material on Self-Healing of Microcracks in Shotcrete

Advances in Materials Science and Engineering, 2022
Due to a particular construction process, the shotcrete structure is affected by external load, material aging, and external temperature during use, with cracks inevitably appearing.
Junru Zhang, Yi Dai, Jian Xu, Jimeng Feng, Kaimeng Ma   +4 more
doaj   +1 more source

Effect and mechanism of high Li2CO3 concentrations on the early hydration of sulfoaluminate cement-based materials

Journal of Materials Research and Technology, 2023
Lithium carbonate (Li2CO3) is a commonly used early strength agent for sulfoaluminate cement based grouting materials. Low concentrations of Li2CO3 (≤30 μmol Li/g in sulfoaluminate cement) can significantly accelerate the early hydration of ...
Haiyan Li, Zhilong Zheng, Xianping Wang, Xuemao Guan, Dinghua Zou   +4 more
doaj   +1 more source

Cold‐curing effects on the strength development and sulfuric acid resistance of basalt fiber‐reinforced hybrid alkali‐activated slag mortars

Structural Concrete, EarlyView.
Abstract Cold weather conditions impose substantial constraints upon the performance and long‐term resilience of concrete materials. Alkali‐activated slag (AAS) presents itself as a promising substitute, exhibiting sustained hydraulic activity even when exposed to ambient conditions characterized by low temperatures.
Zeynep Bahçeci, Murat Dener, Ahmet Benli, Bilal Balun   +3 more
wiley   +1 more source

Synthesis and thermodynamic properties of arsenate and sulfate-arsenate ettringite structure phases. [PDF]

PLoS ONE, 2017
Arsenic is a toxic and carcinogenic contaminant of potential concern. Ettringite [Ca6Al2(SO4)3(OH)12·26H2O] has the ability to incorporate oxyanions as a solid solution with SO42-, which could lower the soluble oxyanion concentrations.
Weixing Wang, Yan Shao, Haobo Hou, Min Zhou   +3 more
doaj   +1 more source

Development of a Nano‐Hybrid Composite Using Bovine Hydroxyapatite and Montmorillonite for Endodontic Applications—An In Vitro Study

International Endodontic Journal, Volume 59, Issue 9, Page 1936-1953, September 2026.
ABSTRACT Aim Hydraulic calcium silicate cements are widely employed in endodontics due to their excellent biocompatibility, bioactivity, sealing ability, and remineralisation potential. However, currently used products such as mineral trioxide aggregate (MTA) exhibit several limitations, including discolouration, cost, and poor handling properties ...
P. A. A. S. Prasad Kumara, Paul R. Cooper, Peter Cathro, Henry F. Duncan, Maree Gould, George Dias, Jithendra Ratnayake   +6 more
wiley   +1 more source

Effect of hybrid accelerator on the property of CFBFA-based foamed concrete

Shenzhen Daxue xuebao. Ligong ban
Circulating fluidized bed fly ash (CFBFA) is a major by-product of modern coal combustion technologies. Foamed concrete with a high CFBFA content can meet insulation requirements for building partition walls.
DONG Biqin, ZHANG Xiao, LIU Yuantao, WANG Yanshuai   +3 more
doaj   +1 more source