Structure formation, rheology and properties of sulfur concrete mixtures and sulfur concrete modified with bitumen and stone flour DOI Creative Commons
Alexey N. Beskopylny, Sergey A. Stel’makh, Evgenii M. Shcherban’

и другие.

Case Studies in Construction Materials, Год журнала: 2024, Номер 20, С. e02917 - e02917

Опубликована: Янв. 26, 2024

The development and improvement of cementless concrete, including by use various types refuse, is especially important due to their economic environmental efficiency. Sulfur as a refuse the oil gas industry can act production binder new environmentally friendly building material - sulfur concrete (SC). purpose study was improve effective designs SC containing from stone processing industries, analyze rheological physical mechanical appearances. Methods laboratory testing samples, well microscopic analysis its structure, were applied. with best values compressive strength (CS) water occlusion has following formula according content main components: 20% mass; flour 10% crushed 40% sand 30% bitumen modifying additive 6% weight sulfur. mobility these combinations enhanced up 2.2 times adding addition formulations. Compared control design, optimal design modified presented an enhancement in CS 105% reduction 70%. structure samples does not have shrinkage cavities pronounced phase boundaries, contrast design.

Язык: Английский

Analyzing the efficacy of waste marble and glass powder for the compressive strength of self-compacting concrete using machine learning strategies DOI Creative Commons
Qing Guan,

Zhong Ling Tong,

Muhammad Nasir Amin

и другие.

REVIEWS ON ADVANCED MATERIALS SCIENCE, Год журнала: 2024, Номер 63(1)

Опубликована: Янв. 1, 2024

Abstract Self-compacting concrete (SCC) is well-known for its capacity to flow under own weight, which eliminates the need mechanical vibration and provides benefits such as less labor faster construction time. Nevertheless, increased cement content of SCC results in an increase both costs carbon emissions. These challenges are resolved this research by utilizing waste marble glass powder substitutes. The main objective study create machine learning models that can predict compressive strength (CS) using gene expression programming (GEP) multi-expression (MEP) produce mathematical equations capture correlations between variables. models’ performance assessed statistical metrics, hyperparameter optimization conducted on experimental dataset consisting eight independent indicate MEP model outperforms GEP model, with R 2 value 0.94 compared 0.90. Moreover, sensitivity SHapley Additive exPlanations analysis revealed most significant factor influencing CS curing time, followed slump quantity. A sustainable approach design presented study, improves efficacy minimizes testing.

Язык: Английский

Процитировано

5

Study on fresh and hardened state properties of eco-friendly foamed concrete incorporating waste soda-lime glass DOI Creative Commons
Md Azree Othuman Mydin,

P. Jagadesh,

Alireza Bahrami

и другие.

Scientific Reports, Год журнала: 2024, Номер 14(1)

Опубликована: Авг. 12, 2024

Abstract Improper waste management is causing global environmental problems. Waste glass may have adverse impacts on the ecosystem. While a substantial amount of soda-lime bottle (SGB) undergoes recycling to create new items, significant volume still ends up in landfills. Therefore, aim this study was explore potential use SGB foamed concrete (FC) production as an aggregate replacement. substituted for sand different weight fractions, ranging from 5 50%. The fresh state, mechanical, thermal, pore structure, and transport properties were examined. findings showed enhancement FC’s mechanical when replaced 20% sand. compressive, flexural, splitting tensile strengths exhibited rise 17.7, 39.4, 43.8%, respectively. also demonstrated that addition improved thermal conductivity, sorptivity, water absorption, porosity. scanning electron microscopy analysis indicated inclusion caused decrease void diameter enhanced its uniformity. A comparison made between experimental data predictions using various models international standards, such IS 456, ACI 318, NZS-3101, EC-02, AS 3600, CEB-FIB, along with several references literature. implied strong correlation strength properties. outcomes research offer valuable insights into both possible advantages constraints FC. Furthermore, extensive laboratory investigation serve guideline future aid advancement greener more environmentally friendly FC alternatives.

Язык: Английский

Процитировано

5

A comprehensive study on the impact of direct electric curing on the performance of molybdenum tailings in cementitious materials DOI Creative Commons
Jilin Wang,

S. H. Huang,

T.F. Liu

и другие.

Case Studies in Construction Materials, Год журнала: 2024, Номер 21, С. e03394 - e03394

Опубликована: Июнь 14, 2024

Developing a suitable activation method to extend the application of molybdenum tailings (MT) in construction materials is crucial for maximizing MT utilization and reducing carbon emissions industry. In this study, was substituted different levels cement prepare cement-MT composite paste, direct electric curing (DEC) used attempting improve reactivity MT. The results indicated that doping decreased compressive strength specimens, increased pore content, reduced generation hydration products. On other hand, DEC effectively improved early activity At 28 d, cementitious coefficient using by 6.25%-675% compared with standard (SC) prepared specimens. Meanwhile, XRD TG test showed promoted process through ohmic heating effect. However, it did not change types products or morphology content refined size distribution stage Moreover, emission cost per unit specimens were significantly those SC. This paper proved feasible way activate activity, could promote materials.

Язык: Английский

Процитировано

4

Experimental study on the in-plane seismic performance of fully grouted interlocking block walls DOI
Ren Xin,

Fengxu Jia,

M.A.R. Hamid

и другие.

Journal of Building Engineering, Год журнала: 2024, Номер 97, С. 110851 - 110851

Опубликована: Сен. 24, 2024

Язык: Английский

Процитировано

4

Structure formation, rheology and properties of sulfur concrete mixtures and sulfur concrete modified with bitumen and stone flour DOI Creative Commons
Alexey N. Beskopylny, Sergey A. Stel’makh, Evgenii M. Shcherban’

и другие.

Case Studies in Construction Materials, Год журнала: 2024, Номер 20, С. e02917 - e02917

Опубликована: Янв. 26, 2024

The development and improvement of cementless concrete, including by use various types refuse, is especially important due to their economic environmental efficiency. Sulfur as a refuse the oil gas industry can act production binder new environmentally friendly building material - sulfur concrete (SC). purpose study was improve effective designs SC containing from stone processing industries, analyze rheological physical mechanical appearances. Methods laboratory testing samples, well microscopic analysis its structure, were applied. with best values compressive strength (CS) water occlusion has following formula according content main components: 20% mass; flour 10% crushed 40% sand 30% bitumen modifying additive 6% weight sulfur. mobility these combinations enhanced up 2.2 times adding addition formulations. Compared control design, optimal design modified presented an enhancement in CS 105% reduction 70%. structure samples does not have shrinkage cavities pronounced phase boundaries, contrast design.

Язык: Английский

Процитировано

3