Study on axial compressive behavior and damage constitutive model of manufactured sand concrete based on fluidity optimization

Article Construction & Building Technology

Hydration kinetics of ternary slag-limestone cements: Impact of water to binder ratio and curing temperature

Ruben Snellings et al.

Summary: Ternary cements offer a potential solution for reducing CO2 emissions from cement production. The study found that water to binder ratio mainly affected slow reacting phases at later ages, while curing temperature had varying impacts on different cementitious minerals. Elevated temperature curing did not lead to cross-over effects in terms of slag hydration degree at later ages.

CEMENT AND CONCRETE RESEARCH (2022)

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Article Construction & Building Technology

Rheological evaluation of nano-metakaolin cement pastes based on the water film thickness

Qiuchao Li et al.

Summary: The rheology of nano-metakaolin (NMK) cement pastes based on water film thickness (WFT) was evaluated in this study. The effects of NMK content, water-to-binder ratio, superplasticizer, environmental temperature, and hydration time were considered. The results showed that NMK increased the viscosity and plastic viscosity of fresh cement pastes, while weakening the effects of environmental temperature and hydration time.

CONSTRUCTION AND BUILDING MATERIALS (2022)

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Article Chemistry, Multidisciplinary

Research on Compressive Strength of Manufactured Sand Concrete Based on Response Surface Methodology (RSM)

Hui Ma et al.

Summary: The response surface methodology was used to analyze the effect of stone powder, pulverized fuel ash, and silica fume on the compressive strength of manufactured sand concrete. The study found that stone powder and pulverized fuel ash had the greatest impact, while silica fume had the least impact.

APPLIED SCIENCES-BASEL (2022)

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Article Construction & Building Technology

Experimental on repair performance and complete stress-strain curve of self-healing recycled concrete under uniaxial loading

Chao Liu et al.

Summary: In this study, self-healing recycled concrete was prepared using recycled aggregate as microbial carrier, and its crack healing capacity and mechanical properties were investigated. The results showed that C-BRC had the best healing capacity, with cracks fully repaired after 28 days of healing.

CONSTRUCTION AND BUILDING MATERIALS (2021)

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Article Construction & Building Technology