Investigation of Helix-Pultruded CFRP Rebar Geometry Variants for Carbon-Reinforced Concrete Structures

Article Polymer Science

Determination of Mechanical Properties of Sand-Coated Carbon Fiber Reinforced Polymer (CFRP) Rebar

Hyun-Do Yun et al.

Summary: This experimental study investigates the mechanical characteristics of CFRP bars, including their tensile, compressive, and shear strength, as well as modulus of elasticity. Understanding these properties is crucial for analyzing the behavior of concrete structures reinforced with CFRP rebars. The use of a coefficient allows for the prediction of tensile strength based on shear strength. The results confirm that CFRP's tensile strength is influenced by its diameter due to the shear lag effect.

POLYMERS (2023)

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Article Chemistry, Multidisciplinary

Multistep Crystallization Pathways in the Ambient-Temperature Synthesis of a New Alkali-Activated Binder

Marcel Maslyk et al.

Summary: The study demonstrates that CO2 emissions during clinker production of cement can be reduced by utilizing a metathesis reaction at room temperature in ball-mills. This method involves forming aNaSiCC, an amorphous intermediate, by mechanochemical activation of CaCO3 and Na2SiO3. It helps understand the interplay between thermodynamics and kinetics in complex reactions of alkali-activated binders and for CaCO3 crystallization in industrial and geochemical settings.

ADVANCED FUNCTIONAL MATERIALS (2022)

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Article Chemistry, Physical

Advanced Carbon Reinforced Concrete Technologies for Facade Elements of Nearly Zero-Energy Buildings

Robert Kraft et al.

Summary: This article introduces the application of carbon reinforced concrete (CRC) technology in nearly zero-energy buildings (nZEB), emphasizing its importance in reducing greenhouse gas emissions and energy consumption. For the production stage of CRC materials, cost-efficient carbon fibers from renewable resources are used to improve cost-effectiveness. For the utilization phase, potential solutions are proposed, including sandwich composites as facade elements, optimized insulation materials, and structural design.

MATERIALS (2022)

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Article Chemistry, Physical

Environmental Assessment of Carbon Concrete Based on Life-Cycle Wide Climate, Material, Energy and Water Footprints

Clemens Mostert et al.

Summary: The construction industry has a significant impact on global warming and resource consumption. Carbon concrete (CC), a composite material made of concrete and carbon fibers, shows lower footprints compared to steel-reinforced concrete (SC) over its entire life-cycle, especially in terms of material and building levels. The use of carbon fibers allows for reduced cement and aggregate consumption, resulting in decreased environmental impacts.

MATERIALS (2022)

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Review Construction & Building Technology

New perspectives on utilization of CO2 sequestration technologies in cement-based materials

Baoju Liu et al.

Summary: This paper focuses on the application of CO2 sequestration technologies in the construction industry and examines the effects of accelerated carbonation on cement-based materials. The results indicate that CO2 curing can improve the microstructure density and mechanical properties of CBM, facilitating the reuse of recycled materials in CBM.

CONSTRUCTION AND BUILDING MATERIALS (2021)

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Review Materials Science, Composites