Construcción

Construcción

Effects of ethylenediamine tetra-acetic acid (EDTA) and its disodium salt derivative (EDTA-Na) on the characteristics of magnesium oxysulfate (MOS) cement
01/03/2022 - Ethylenediamine tetra-acetic acid (EDTA) and its disodium salt derivative (EDTA-Na) (0.5% weight of MgO powder) were incorporated into MgO–MgSO4–H2O ternary system to prepare magnesium...
Comparison of new LCR and ordinary prestressed concrete railway sleepers with LUR tests
28/02/2022 - Rail operations today have become more difficult due to increasing operating speeds and decreasing maintenance times. New developed, laminated carbon fiber reinforced polyurethane (L-CFRPU)...
Effect of endogenous chloride ion content and mineral admixtures on the passivation behavior of reinforcement embedded in sea-sand ultra-high performance concrete matrix
28/02/2022 - Ultra-high performance concrete (UHPC) is typically defined as an advanced cementitious material which exhibits excellent mechanical property and superior durability. The development of UHPC made...
Modeling and analysis of fiber-reinforced high-performance concrete strength prediction based on nonlinear programming
07/03/2022 - In this study, the nonlinear programming software Design-Expert and Lingo were used to establish a mathematical model between the fiber volume fraction and the strength of high-performance...
Effect of mixed fibers on fly ash-based geopolymer resistance against carbonation
07/03/2022 - In this study, the resistance of mixed fiber reinforced fly ash-based geopolymer incorporated with different polyvinyl alcohol (PVA) fibers and modified multi-walled carbon nanotubes (MWCNTs)...
Thermodynamic modeling and mechanical properties of hybrid alkaline cement composites
07/03/2022 - Hybrid alkaline cement composites (HACC) were developed to overcome the low compressive strength of hybrid alkaline cement. Synthesized with geopolymer and cement paste, HACC contains a larger...
Effect of height to diameter ratio on dynamic characteristics of cemented tailings backfills with fiber reinforcement through impact loading
07/03/2022 - The safety and durability of underground backfilled stopes of metalliferous mines are so crucial owing to several dynamic events such as rock bursting, loads triggered by blasting, and loading...
Mechanical properties of concrete composites with auxetic single and layered honeycomb structures
07/03/2022 - Auxetic materials exhibit desirable mechanical properties, e.g., fracture resistance, shear resistance and energy dissipation due to their unique deformation characteristics. Honeycomb sandwich...
Experimental investigation on the behavior of the steel–concrete composite frames with uplift-restricted and slip-permitted screw-type (URSP-S) connectors
- The uplift-restricted and slip-permitted screw-type (URSP-S) connector is proved be very useful to improve the crack resistance of the concrete decks in the negative bending moment areas in...
Development of environment-friendly and ductile recycled aggregate concrete through synergetic use of hybrid fibers
17/01/2022 - The partial or full replacement of natural aggregates with recycled ones can lessen the harmful effects of concrete industry on the environment. Despite offering sustainability benefits, recycled...
A systematic review on the impact of cement industries on the natural environment
17/01/2022 - The negative health effects of cement plant exposure are well-known in industrial settings, but they are less well-known among the general public who live near plants. The broad objective of the...
A comparative life cycle assessment study with uncertainty analysis of cement treated base (CTB) pavement layers containing recycled asphalt pavement (RAP) materials
01/05/2022 - Cement Treated Base (CTB) is a mixture of aggregates, Portland cement and water that hardens through curing to create a strong and durable material that is widely used as a base course in road...
Material demand, and environmental and climate implications of Australia's building stock: Current status and outlook to 2060
01/05/2022 - The construction and maintenance of residential, commercial, and industrial buildings are associated with a significant environmental footprint. Resource efficiency and innovation in the built...
Flexural behavior of concrete slabs strengthened with textile reinforced geopolymer mortar
15/03/2022 - This paper presents results from experimental and numerical studies on the flexural behavior of...
Enhancing hygrothermal mechanical properties stability of polymer composite based on the concrete structure
01/04/2022 - It is widely acknowledged that the hygrothermal condition can reduce the mechanical properties of fly ash filled cured epoxy resin (CEPFA). Therefore, it is of great significance to study the...
Crack development of rebar rust in rubberized concrete using mesoscale model
28/02/2022 - Reinforcement rust will lead to cracking of rubberized concrete and reduce durability of rubberized concrete structure. Therefore, the fracture morphology of rubberized concrete, which is caused...
Rheological properties of sprayable ultra-high performance concrete with different viscosity-enhancing agents
28/02/2022 - A sprayable ultra-high performance concrete (SUHPC) with ultra-high strength, low shrinkage and rapid construction characteristics has been developed in this research. Considering the rheological...
Experimental study on the mechanical and hydraulic behaviour of Fibre-Reinforced cemented soil with fly ash
28/02/2022 - In this article, a series of consolidated undrained triaxial shear tests and permeability tests were performed to investigate the mechanical and hydraulic behaviour of four different cement-soil...
Evaluating the thermal aging-induced raveling potential of thin friction course (TFC)
28/02/2022 - Thin friction course (TFC) mixed with open-graded aggregate ranging from 3 to 5 mm, styrene-butadiene rubber (SBR)-modified asphalt emulsion, and cement is constructed to improve the skid...
Optimizing lightweight expanded clay aggregate coating for enhanced strength and chloride resistance
28/02/2022 - Lightweight expanded clay (EC) aggregates help in decreasing the dead load of the structure and reduce the concrete demand in foundations and other major structural members. However, a major...