3.9 Article

Synergistic Effect of HEDP.4Na and Different Induced Pouring Angles on Mechanical Properties of Fiber-Reinforced Alkali-Activated Slag Composites

Related references

Note: Only part of the references are listed.
Article Construction & Building Technology

Prediction of dynamic mechanical behaviors of coral concrete under different corrosive environments and its enhancement mechanism

Jingjie Wei et al.

Summary: This study investigates the effects of different corrosion environments and low-frequency waves on the dynamic properties of coral concrete. The research finds that sulfate attack has the most significant influence on coral concrete, while the effect of chloride ion penetration is negligible. The loss factor of coral concrete under corroded environments increases by 59.5%, although the loss modulus and storage modulus reduce by 38.5% and 51.8% respectively. The high porosity and interconnected pores in coral aggregate contribute to better energy dissipation.

JOURNAL OF BUILDING ENGINEERING (2023)

Article Energy & Fuels

Preparation, characterization and application of environment-friendly high density and low damage solid free completion fluids for completing HTHP oil and gas wells

Jinhua Huo et al.

Summary: In this study, high density and low damage solid free completion fluids were prepared and their properties, including solid free characteristics, biological toxicity, pH and density stability, were studied. The thermal stability, rheological, lubrication and inhibition performances of completion fluids were investigated. The corrosion performances and mechanism of completion fluids on different materials were studied. The compatibility of completion fluids with other drilling fluids was investigated. The results show that the developed completion fluids meet the design requirements and can be used for well-killing operations in HTHP oil and gas wells.

GEOENERGY SCIENCE AND ENGINEERING (2023)

Article Green & Sustainable Science & Technology

Dynamical properties of environmental high-performance composites with calcined clay

Jingjie Wei et al.

Summary: This study investigates the dynamic properties of high-performance composite materials HPC-LC3 and proposes a method to enhance the dynamic properties of structures by improving the vibration absorption ability of cement-matrix materials. The results show that incorporating LC3 into traditional HPC can improve its dynamic properties and reduce energy consumption, CO2 emissions, and costs.

JOURNAL OF CLEANER PRODUCTION (2022)

Article Green & Sustainable Science & Technology

Reducing the emission of climate-altering substances in cementitious materials: A comparison between alkali-activated materials and Portland cement-based composites incorporating recycled tire rubber

Marco Valente et al.

Summary: Low carbon or near-zero carbon concrete technology can reduce environmental pollution by using industrial waste or low-carbon binders to reduce the consumption of Portland cement and natural resources. This study compares alkali-activated materials with rubber particles as replacement for raw mineral aggregates in concrete. The results show that the alkali-activated matrix has better compatibility and mechanical performance with rubber aggregates, but weaker compressive strength. Sustainability analysis reveals that the geopolymer formulations are more environmentally friendly but have higher production costs.

JOURNAL OF CLEANER PRODUCTION (2022)

Article Green & Sustainable Science & Technology

Design, dynamic performance and ecological efficiency of fiber-reinforced mortars with different binder systems: Ordinary Portland cement, limestone calcined clay cement and alkali-activated slag

Wu-Jian Long et al.

Summary: This study compared the dynamic mechanical properties, ecological and economic efficiency of fiber-reinforced mortars (FRMs) made with different binder systems. The results showed that FRMs made with limestone calcined clay cement (LC3) exhibited higher loss factors, appropriate pore size distributions, and good fiber-matrix interfacial properties. Additionally, FRMs made with LC3 showed lower energy consumption and cost compared to other types of mortars.

JOURNAL OF CLEANER PRODUCTION (2022)

Review Construction & Building Technology

Fiber-reinforced alkali-activated concrete: A review

Mugahed Amran et al.

Summary: Alkali-activated materials (AAMs) and steel fibers together have great potential in modern construction due to their superior bond strength and good interaction, leading to improved tensile strength and durability. Additional research is needed to further explore the application possibilities of fiber-reinforced alkali-activated concrete (FR-AAC) in different environmental conditions.

JOURNAL OF BUILDING ENGINEERING (2022)

Article Construction & Building Technology

Simplified analytical model to assess key factors influenced by fiber alignment and their effect on tensile performance of UHPC

Le Teng et al.

Summary: Increasing the single-fiber pullout strength usually enhances the tensile strength and toughness of UHPC. However, an increase in fiber orientation angle leads to a reduction in tensile strength due to a decrease in fiber number and embedment length. Experimental and analytical models were used to assess the key factors influencing the tensile properties of UHPC, and a simplified model was proposed to evaluate the effect of each factor on tensile strength.

CEMENT & CONCRETE COMPOSITES (2022)

Review Construction & Building Technology

A scientometric review on mechanical and durability performance of geopolymer Paste: Effect of various raw materials

Ali Raza et al.

Summary: This research assesses the microstructural, fresh, hardened, and durability characteristics of geopolymer paste. The influence of alkaline solution forms, concentrations, activators, mix proportioning, curing conditions, and additives is investigated.

CONSTRUCTION AND BUILDING MATERIALS (2022)

Article Construction & Building Technology

Effect of mixing method on the performance of alkali-activated fly ash/slag pastes along with polycarboxylate admixture

Yazan Alrefaei et al.

Summary: The study investigates the impact of mixing procedures on the fresh and hardened properties of alkali-activated materials, finding that the mixing procedure significantly affects the performance of AAMs. Hybrid-mixed binders exhibit better performance compared to traditional mixing methods.

CEMENT & CONCRETE COMPOSITES (2021)

Article Construction & Building Technology

Effect of phosphonate addition on sodium carbonate activated slag properties

Artur Kiiashko et al.

Summary: The addition of the phosphonate oligomer 4Na-HEDP significantly improves the rheological properties of sodium carbonate alkali-activated slag binders by reducing yield stress and stabilizing over time. This enhancement is attributed to an increase in the negative charge of slag particles and a delay in the precipitation of the main hydration product gaylussite due to the Ca-chelating effects of HEDP.

CEMENT & CONCRETE COMPOSITES (2021)

Review Construction & Building Technology

Recent advances in chemical admixtures for improving the workability of alkali-activated slag-based material systems

Su Tong et al.

Summary: This paper reviews the progress in using chemical admixtures to improve the workability and setting time of alkali-activated slag (AAS) systems. The stability of different superplasticizers in various alkaline activator solutions and their influence on dispersion performance in AAS systems are summarized. Additionally, the effects of different superplasticizers and retarders on the workability, setting time, and mechanical properties of AAS systems are discussed.

CONSTRUCTION AND BUILDING MATERIALS (2021)

Article Construction & Building Technology

Reinforcement mechanism of orientally distributed steel fibers on ultra-high-performance concrete

Hongxiang Gou et al.

Summary: A novel device and method were developed to orientally distribute thin and short steel fibers in ultra-high-performance concrete (UHPC), improving mechanical properties significantly. Through image processing and theoretical prediction models, the enhancement mechanism of steel fibers and mechanical properties were studied. Oriented steel fibers can enhance flexural strength, flexural-tensile strength, toughness, and interfacial bonding strength, compared to randomly oriented steel fibers.

CONSTRUCTION AND BUILDING MATERIALS (2021)

Article Construction & Building Technology

Prediction of fiber orientation and flexural performance of UHPC based on suspending mortar rheology and casting method

Le Teng et al.

Summary: This study proposes a novel approach to predict fiber orientation and flexural performance of UHPC, which depends significantly on the rheological properties of suspending mortar and casting method. The developed models successfully predicted fiber orientation and flexural response with limited deviation from experimental results.

CEMENT & CONCRETE COMPOSITES (2021)

Review Construction & Building Technology

Fiber alignment and its effect on mechanical properties of UHPC: An overview

Huanghuang Huang et al.

Summary: Fiber alignment can significantly enhance the mechanical performance of UHPC, especially in flexural and tensile properties. It can improve flexural strength, toughness, and tensile strength, reduce fiber volume, enhance dynamic compressive strength and flexural strength, decrease electrical resistance, and improve self-sensing ability of UHPC.

CONSTRUCTION AND BUILDING MATERIALS (2021)

Proceedings Paper Materials Science, Multidisciplinary

Strength and durability of fiber reinforced concrete with partial replacement of cement by Ground Granulated Blast Furnace Slag

P. K. Prasanna et al.

Summary: The research evaluates the impact of using Ground Granulated Blast Furnace Slag (GGBS) as a partial substitute for cement on the mechanical properties and durability of concrete. The results show that under specific conditions, partial replacement of cement can increase the compressive strength of concrete and significantly improve its durability.

MATERIALS TODAY-PROCEEDINGS (2021)

Article Construction & Building Technology

Effect of alkali contents, moduli and curing time on engineering properties of alkali activated slag

Shuai Fang et al.

CONSTRUCTION AND BUILDING MATERIALS (2020)

Article Construction & Building Technology

Improvement of flexural and tensile strength of layered-casting UHPC with aligned steel fibers

Yang Zhang et al.

CONSTRUCTION AND BUILDING MATERIALS (2020)

Article Construction & Building Technology

Rheology control of ultra-high-performance concrete made with different fiber contents

Le Teng et al.

CEMENT AND CONCRETE RESEARCH (2020)

Article Thermodynamics

Effect of silicate modulus of water glass on the hydration of alkali-activated converter steel slag

Jianwei Sun et al.

JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY (2019)

Review Engineering, Multidisciplinary

Damping additives used in cement-matrix composites: A review

Lin Chi et al.

COMPOSITES PART B-ENGINEERING (2019)

Article Construction & Building Technology

Effect of retarders on flow and strength development of alkali-activated fly ash/blast furnace slag composite

Kenta Sasaki et al.

CONSTRUCTION AND BUILDING MATERIALS (2019)

Review Construction & Building Technology

Geopolymer, green alkali activated cementitious material: Synthesis, applications and challenges

Yanguang Wu et al.

CONSTRUCTION AND BUILDING MATERIALS (2019)

Article Green & Sustainable Science & Technology

Dynamic mechanical analysis of cement mortar prepared with recycled cathode ray tube (CRT) glass as fine aggregate

Tiejun Liu et al.

JOURNAL OF CLEANER PRODUCTION (2018)

Article Construction & Building Technology

Improvement effect of steel fiber orientation control on mechanical performance of UHPC

Huanghuang Huang et al.

CONSTRUCTION AND BUILDING MATERIALS (2018)

Proceedings Paper Materials Science, Multidisciplinary

Effect of Graphene Oxide on the Damping Capability of Recycled Mortar

Jing-Jie Wei et al.

4TH INTERNATIONAL CONFERENCE ON ADVANCED ENGINEERING AND TECHNOLOGY (4TH ICAET) (2018)

Article Construction & Building Technology

Research on dynamic mechanical properties of alkali activated slag concrete under temperature-loads coupling effects

Wu-Jian Long et al.

CONSTRUCTION AND BUILDING MATERIALS (2017)

Article Construction & Building Technology

Flexural capacity of fiber reinforced concrete with a consideration of concrete strength and fiber content

Jong-Han Lee et al.

CONSTRUCTION AND BUILDING MATERIALS (2017)

Article Construction & Building Technology

The damping property of recycled aggregate concrete

Chaofeng Liang et al.

CONSTRUCTION AND BUILDING MATERIALS (2016)

Article Green & Sustainable Science & Technology

Cement industry greenhouse gas emissions - management options and abatement cost

Raili Kajaste et al.

JOURNAL OF CLEANER PRODUCTION (2016)

Article Energy & Fuels

Synthesis, characterization and performance of a novel phosphate modified fluid loss additive useful in oil well cementing

Thomas Hurnaus et al.

JOURNAL OF NATURAL GAS SCIENCE AND ENGINEERING (2016)

Article Green & Sustainable Science & Technology

Assessment of CO2 reduction of alkali-activated concrete

Keun-Hyeok Yang et al.

JOURNAL OF CLEANER PRODUCTION (2013)

Article Engineering, Environmental

Application of 1-hydroxyethylidene-1, 1-diphosphonic acid in boiler water for industrial boilers

Bin Zeng et al.

WATER SCIENCE AND TECHNOLOGY (2013)

Article Construction & Building Technology

Chemical and mechanical stability of sodium sulfate activated slag after exposure to elevated temperature

A. M. Rashad et al.

CEMENT AND CONCRETE RESEARCH (2012)

Article Materials Science, Multidisciplinary

Effect of steel and carbon fiber additions on the dynamic properties of concrete containing silica fume

V. T. Giner et al.

MATERIALS & DESIGN (2012)

Article Construction & Building Technology

High mechanical performance of fibre reinforced cementitious composites: the role of casting-flow induced fibre orientation

Liberato Ferrara et al.

MATERIALS AND STRUCTURES (2011)