Ultra high performance concrete (UHPC): reactive powder concrete ...
2021.10.12 In this review, a basic description of reactive powder concrete, slurry infiltrated fiber concrete (also known as SIFCON) and superabsorbent polymer
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ULTRA SURFACE CONCRETE POLYMER - Cohills
Ultra Surface Polymer Concrete is designed to combat the shortcomings of regular concrete; particularly its low flexural strength and thin section fragility. It promotes a
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Ultra high performance and high strength geopolymer concrete
2021.9.27 Ultra high performance and high strength geopolymer concrete refer to a group of cementitious materials with engineered properties such as high strength-to
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Microstructural and micromechanical characteristics of ultra-high ...
2021.11.1 Microstructure Porosity SAP UHPC 1. Introduction Ultra-high performance concrete (UHPC) has high compressive strength, flexural properties, and excellent
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Effect of Polymers on Behavior of Ultra-High-Strength Concrete.
2022.6.25 Ultra-high-performance concrete (UHPC) has emerged as an innovative structural composite with superior engineering properties. Due to exclusion of coarse
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Performance of bond strength between ultra-high-performance
2022.7.1 Abstract. Ultra-high-performance concrete (UHPC) is one of the contemporary overlay materials for repairing and retrofitting of reinforced concrete (RC)
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Effect of various polymer fibers on spalling mitigation of ultra-high ...
2020.11.1 Polymer fibers have been commonly used to prevent spalling of ultra-high performance concrete (UHPC) at high temperature. Although different polymer fibers
MoreUltra high performance concrete (UHPC): reactive powder concrete ...
2021.10.12 In this review, a basic description of reactive powder concrete, slurry infiltrated fiber concrete (also known as SIFCON) and superabsorbent polymer
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Polymers Free Full-Text Investigation of Mechanical Properties
2023.10.27 1. Introduction Concrete presently stands as one of the most widely employed and abundantly consumed construction materials. Recent statistics have
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Polymers Free Full-Text Experimental Investigation
2022.10.22 In order to investigate the effectiveness of polymer modification and fiber reinforcement on the cracking and impact resistance of concrete materials prepared for ultra-thin whitetopping (UTW),
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Effect of superabsorbent polymer characteristics on rheology of ultra
2020.4.29 Ultra-high performance concrete mixtures containing SAPs showed that fast-releasing SAPs reduced mixture yield stress values, while more retentive particles increased yield stress and viscosity ...
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Sulphate Corrosion Mechanism of Ultra-High-Performance Concrete
2 easily diffuses and migrates to the surface of the aluminum phase, forming ettringite crystals on the surface of cement particles and causing structure expansion. Cracks appear on the surface of concrete, as erosion progresses further, spread deeper into the concrete. After ettringite forms on the surface, the eroded SO4 2
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Polymers Free Full-Text Investigation of Mechanical Properties
2023.10.27 The utilization of ultra-high-molecular-weight polyethylene fibers (UHMWPEFs) to enhance recycled-brick-aggregate concrete represents an efficacious approach for ameliorating the concrete’s performance. This investigation addresses the influences of recycled-brick aggregates (RAs) and UHMWPEFs on the concrete’s
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Polymers Free Full-Text Experimental Investigation of ... - MDPI
In order to investigate the effectiveness of polymer modification and fiber reinforcement on the cracking and impact resistance of concrete materials prepared for ultra-thin whitetopping (UTW), carboxyl butyl benzene latex and polyformaldehyde fibers were added to the conventional cement concrete mix. In addition, test methods that used an asphalt
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Polymers Special Issue : Preparation, Structure and ... - MDPI
2023.2.25 In order to investigate the effectiveness of polymer modification and fiber reinforcement on the cracking and impact resistance of concrete materials prepared for ultra-thin whitetopping (UTW), carboxyl butyl benzene latex and polyformaldehyde fibers were added to the conventional cement concrete mix.
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Effects of Type and Content of Fibers, Water-to-Cement Ratio, and ...
2022.5.11 surface roughness, and elasticity modulus of the fibers. The shrinkage and creep of the UHPC were caused by the chemical autogenous shrinkage and free water evaporation of the UHPC. Keywords: ultra-high performance concrete; fiber types; shrinkage; creep 1. Introduction Compared with normal concrete, ultra-high
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ULTRA SURFACE CONCRETE POLYMER
ULTRA SURFACE CONCRETE POLYMER Technical Data Sheet (May 2003) Concrete Solutions - 3904 Riley St. - San Diego, Calif., 92110 - Ph. (800) 232-8311 Fax (619) 297- 3333 DESCRIPTION: Ultra Surface Concrete Polymer is a special formulation of water-based resins specifically designed to be mixed with water, cement and sand mixtures.
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Frontiers Mitigating shrinkage in ultra-high performance concrete ...
2022.12.5 To mitigate the shrinkage properties of ultra-high performance concrete (UHPC), MgO expansion ... (EA), or a super absorbent polymer (SAP) to the concrete (Liu et al., 2022). An SRA will delay cement ... The average particle size of the silica fume (SF) used was 0.1–0.3 µm, and the specific surface area was 25,000 m 2 ...
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Enhancing the PVA fiber-matrix interface properties in ultra high ...
2021.5.1 Nonetheless, polymer-based fibers such as polypropylene [23], polyethylene [117] and polyvinyl alcohol (PVA) [118] are also used in ultra high performance concrete but mostly for specific purposes.
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Shear Bond between Ultra-High Performance Fibre Reinforced Concrete ...
2021.7.23 Using different surface measurement techniques including the sand ... Chorinsky, G. Repair of Concrete Floors with Polymer Modified Cement Mortars. Adhesion between Polymers ... A. Experimental and numerical study on bond strength between conventional concrete and Ultra High-Performance Concrete (UHPC). Eng. Struct.
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The Mechanism of Anticorrosion Performance and Mechanical
2022.7.30 The generated CaCO 3 with amorphous hydrated SiO 2 covered the surface of the original concrete, to increase the carbonation resistance of the concrete. ... Although the ultra-high-performance polymer cement mortar prepared with seawater and sea sand revealed excellent mechanical properties, ...
MoreMaterials Special Issue : Polymer in/on Concrete - MDPI
Modification of concrete surface with polymers; FRP composites for reinforcement and strengthening; Special types of concrete–polymer composites; ... superplasticizers used in high and ultra-high performance concretes (UHPC) influence the chemical system of the pastes and for example retardation of the cement hydration occurs.
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Effect of Polymers on Behavior of Ultra-High-Strength Concrete
2022.6.25 Polymer particles form a covering polymeric layer when they agglomerate on the hydration gel surface. The active groups in polymer molecules can create unique bridge connections with cement hydration products, strengthening the physical structure of the hardened concrete and therefore, increasing the density of the polymeric cement
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Internal curing of ultra-high-performance concrete: A
The smooth surface of the PCA was found to be responsible for the weak ITZ. IC could also be a reliable technique to enhance UHPC effectiveness if PSAs with suitable physicochemical properties were used. ... Wyrzykowski M, Bajare D, Lura P. Internal curing by superabsorbent polymers in ultra-high performance concrete. Cem Concr Res.
MoreSulphate Corrosion Mechanism of Ultra-High-Performance Concrete
2 easily diffuses and migrates to the surface of the aluminum phase, forming ettringite crystals on the surface of cement particles and causing structure expansion. Cracks appear on the surface of concrete, as erosion progresses further, spread deeper into the concrete. After ettringite forms on the surface, the eroded SO4 2
MoreMicrostructural and micromechanical characteristics of ultra
2021.11.1 Superabsorbent polymer (SAP) as internal curing agent can effectively mitigate the autogenous shrinkage and promote cement hydration of ultra-high performance concrete (UHPC).
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Materials Special Issue : Ultra High Performance Concrete
2023.8.10 Abstract. Ultra-high performance concrete (UHPC) is a novel cement-based material with exceptional mechanical and durability properties. Silica fume, the primary supplementary cementitious material (SCM) in UHPC, is expensive in North America, so it is often substituted with inexpensive class F fly ash.
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(PDF) Interfacial Shear Performance of Epoxy Adhesive Joints of ...
2022.3.28 Application of ultra-high-performance concrete ... Polymers 2022, 14, 1364. https: ... between the concrete and the concrete surface.
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Durability Performance of Geopolymer Concrete: A Review - MDPI
2022.2.23 Geopolymer concrete is produced from the geopolymerization process, in which molecules known as oligomers integrate to form geopolymer networks with covalent bonding. Its production expends less thermal energy and results in a smaller carbon footprint compared to Ordinary Portland Cement (OPC) concrete. It requires only an alkaline
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