Construcción

Construcción

Effect of dosage of silica fume on the macro-performance and micro/nanostructure of seawater Portland cement pastes prepared with an ultra-low water-to-binder ratio
- Seawater and sea-sand based ultra-high performance concrete (UHPC) is currently regarded as one of the most innovative and promising construction materials. To provide design guidance for the...
Comparative study on the role of PAM and PANA on the property of fresh cement paste
- Both polyacrylamide (PAM) and sodium polyacrylate (PANA) are polypropylene based polymer, however...
Preparation and performance of autoclaved aerated concrete reinforced by dopamine-modified polyethylene terephthalate waste fibers
19/09/2022 - The low tensile and flexural strengths make autoclaved aerated concrete (AAC) susceptible to cracking and damage during transportation and service. This study investigated the use of waste...
Mechanical test and constitutive model of recycled plastic fiber reinforced recycled concrete
19/09/2022 - The use of the Recycled Plastic Fiber Reinforced Recycled Concrete (RPFRRC) can not only improve the mechanical properties of concrete, but it also can reuse the waste. The uniaxial compression...
Verifying domain knowledge and theories on Fire-induced spalling of concrete through eXplainable artificial intelligence
19/09/2022 - This paper adopts eXplainable Artificial Intelligence (XAI) to identify the key factors influencing fire-induced spalling of concrete and to extract new insights into the phenomenon of spalling by...
Axial behavior of circular seawater sea-sand coral concrete columns reinforced with BFRP bars and spirals
19/09/2022 - For the sake of solving the problem of steel reinforcement corrosion in concrete structures and reducing the transportation cost of concrete raw materials at sea in the development of South China...
Performance of magnesium hydroxide gel at different alkali concentrations and its effect on properties of magnesium oxysulfate cement
19/09/2022 - This paper investigated the influence of the alkali concentration on the nanostructure of synthetic magnesium hydroxide and examined the effect of magnesium hydroxide on the performance of...
Influence of medium-low strain rate on the axial failure of CFRP-confined concrete columns: meso-scale modellings
19/09/2022 - This study presents a three-dimensional meso-scale numerical model for the simulation of dynamic failure of axially loaded CFRP-confined concrete columns. The concrete heterogeneity and...
Three-dimensional numerical prediction of elastic modulus of concrete as a three-phase composite with asymptotic homogenization
19/09/2022 - In this study, the elastic modulus of a concrete material was predicted using three-dimensional (3D) numerical models based on asymptotic homogenization. A novel meshing method was developed to...
A comparative study on the release behavior of self-healing capsules under different asphalt mixing and transportation conditions
19/09/2022 - Calcium alginate capsules used in asphalt mixtures for crack healing is a promising maintenance approach for asphalt pavements. However, the effects of asphalt mixing and transportation on the...
Mechanical, hydration, and microstructural behavior of cement paste incorporating Zeolitic imidazolate Framework-67 (ZIF-67) nanoparticles
19/09/2022 - Zeolitic imidazolate frameworks (ZIFs) have recently emerged as attractive materials for several applications including the building and construction sector. Unlike most other 2D nanomaterials,...
Understanding the role of graphene oxide nanoribbons–functionalized carbon nanotubes–graphene oxide (GNFG) complex in enhancing the fire resistance of cementitious composites
19/09/2022 - In this study, the enhancement effect of synthesized graphene oxide nanoribbons–functionalized carbon nanotubes–graphene oxide (GNFG) complex on the fire resistance of cementitious composites...
A scaled test on the damage and vibration behavior of reinforced concrete nuclear containment subjected to a large aircraft impact
- After the 9/11 terrorist attacks in the United States, the ability of nuclear power plants (NPPs) to resist the malicious impact of large commercial aircraft has become a focus in the nuclear...
Compressive behavior and design method of BFRP bars constrained with a BFRP spiral with different spacings in concrete members
- This paper provides an experimental study on the compressive behavior and design method of BFRP bars constrained with a BFRP spiral with different spacings in concrete columns. Thirty columns...
Probabilistic axial capacity model for concrete-filled steel tubes accounting for load eccentricity and debonding
- Concrete-filled steel tubular (CFST) columns are increasingly used around the world because they offer two significant advantages. The first one is the composite action of the steel tube and...
Strength and durability characteristics of steel fiber-reinforced geopolymer concrete with addition of waste materials
06/08/2022 - In general, all countries in the world use ordinary Portland cement concrete for the construction purpose; this ordinary Portland cement (OPC) gives good mechanical properties and durability to...
Freeze-thaw resistance of 3D-printed composites with desert sand
- The reasonable utilisation of local desert sand for manufacturing 3D-printed concrete is sustainable and contributes to the advancement of 3DCP to achieve its maximum environmental potential. In...
Mechanical properties of prestressed concrete cylinder pipe with broken wires using distributed fiber optic sensors
01/11/2022 - Wire breakage is a major factor that results in the failure of prestressed concrete cylinder pipes (PCCPs). In this study, a prototype test was conducted on a PCCP specimen to evaluate its...
Effect of alkaline washing treatment on leaching behavior of municipal solid waste incineration bottom ash
04/08/2022 - This study aimed to find an effective, inexpensive, and safe washing treatment for municipal solid waste incineration bottom ash (MSWIBA) in order to reduce its potential harmful effects in...
Advance in barnacle cement with high underwater adhesion
03/08/2022 - In the present study, a soft actuator?grade thermoplastic polyurethane (TPU) was synthesized and then processed into a filament for FDM 3D printers during a melt?extrusion process using synthesized...