scholarly journals Mechanical Strength and Durability Properties of High Performance Mortar Containing Densified Silica Fume

2011 ◽  
Vol 8 (1) ◽  
pp. 82-91 ◽  
Author(s):  
Ban
Keyword(s):  
Mechanical Strength ◽  
Silica Fume ◽  
High Performance ◽  
Durability Properties ◽  
Strength And Durability

scholarly journals Matrix Optimization of Ultra High Performance Concrete for Improving Strength and Durability

Materials ◽  
2021 ◽  
Vol 14 (22) ◽  
pp. 6944
Author(s):  
Julio A. Paredes ◽  
Jaime C. Gálvez ◽  
Alejandro Enfedaque ◽  
Marcos G. Alberti
Keyword(s):  
Silica Fume ◽  
High Performance ◽  
Mercury Intrusion Porosimetry ◽  
High Performance Concrete ◽  
Silica Sand ◽  
Nano Silica ◽  
Ultra High Performance Concrete ◽  
Matrix Optimization ◽  
Binder Ratio ◽  
Strength And Durability

This paper seeks to optimize the mechanical and durability properties of ultra-high performance concrete (UHPC). To meet this objective, concrete specimens were manufactured by using 1100 kg/m3 of binder, water/binder ratio 0.20, silica sand and last generation of superplasticizer. Silica fume, metakaolin and two types of nano silica were used for improving the performances of the concrete. Additional mixtures included 13 mm long OL steel fibers. Compressive strength, electrical resistivity, mercury intrusion porosimetry tests, and differential and thermogravimetric thermal analysis were carried out. The binary combination of nano silica and metakaolin, and the ternary combination of nano silica with metakaolin and silica fume, led to the best performances of the UHPC, both mechanical and durable performances.

scholarly journals Incorporation of Carbon Fiber and Silica Fume in the Production of Conductive Concrete

2019 ◽  
Vol 7 (2) ◽  
pp. 17-21
Author(s):  
M. Purushothaman ◽  
◽  
K. Natarajan
Keyword(s):  
Electrical Conductivity ◽  
Silica Fume ◽  
Carbon Fibers ◽  
Low Voltage ◽  
Winter Season ◽  
Concrete Technology ◽  
Durability Properties ◽  
The Cost ◽  
Strength And Durability ◽  
Short Carbon

Concrete is regarded as a composite material that has good mechanical and durability properties for construction. However normal concrete is poor in electrical conductivity. An endeavour has been made with concrete to have all these three properties. The addition of small amounts of short carbon fibers and a nanomaterial silica fume to the concrete mixture causes an increase in strength and durability properties as well as electrical conductivity. In this paper, experimental results of compressive strength and electrical resistivity are presented. This Concrete technology can be applied with low voltage current for de-icing on highways and airfields, during snowfall in the winter season. This technique will help to reduce the cost and environmental issues of roads in snow fall region.

scholarly journals Matrix Optimization of Ultra High Performance Concrete for Improving Strength and Durability

2021 ◽  
Author(s):  
Julio Paredes ◽  
Jaime C. Gálvez ◽  
Alejandro Enfedaque ◽  
Marcos G. Alberti
Keyword(s):  
Silica Fume ◽  
High Performance ◽  
Mercury Intrusion Porosimetry ◽  
High Performance Concrete ◽  
Silica Sand ◽  
Nano Silica ◽  
Ultra High Performance Concrete ◽  
Matrix Optimization ◽  
Binder Ratio ◽  
Strength And Durability

This paper seeks to optimize the mechanical and durability properties of ultra-high performance concrete (UHPC). To meet this objective, concrete specimens were manufactured by using 1,100 kg/m3 of binder, water/binder ratio 0.20, silica sand and last generation of superplasticizer. Silica fume, metakaolin and two types of nano silica were used for improving the performances of the concrete. Additional mixtures included 13mm long OL steel fibers. Compressive strength, electrical resistivity, mercury intrusion porosimetry tests and differential and thermogravimetric thermal analysis were carried out. The binary combination of nano silica and metakaolin, and the ternary combination of nano silica with metakaolin and silica fume, led to the best performances of the UHPC, both mechanical and durable performances.

scholarly journals Mechanical and Durability Properties of Lightweight Foamed Concrete Containing Palm Kernel Shell

2018 ◽  
Vol 7 (3.9) ◽  
pp. 65 ◽  
Author(s):  
Hanizam Awang ◽  
Adebayo Adeshina Dauda ◽  
Wenny Arminda
Keyword(s):  
Mechanical Properties ◽  
Compressive Strength ◽  
Mechanical Strength ◽  
Mechanical Performance ◽  
Palm Kernel ◽  
Dry Density ◽  
Palm Kernel Shell ◽  
Durability Properties ◽  
Foamed Concrete ◽  
Strength And Durability

The research project aimed to investigate the effect of palm kernel shell (PKS) on the mechanical strength and durability of foamed concrete at the level of 10% to 60%. The samples were designed and prepared having a dry density of 1600 kg/m3with a binder to filler ratio of 1:1.2. Hardened foamed concrete samples were subjected to air cured and tested at the age of 7, 14, 28, 56 and 90 days. Mechanical performance of the PKS foamed concrete was assessed in term of its compressive strength. Durability properties namely water absorption and vacuum porosity were investigated. The result shows that the addition of PKS to lightweight foamed concrete up to 30% significantly improve the mechanical properties and the durability of the foamed concrete.  

scholarly journals Mechanical Strength Properties of Geopolycrete with GGBS for Composite Construction

2020 ◽  
Vol 8 (5) ◽  
pp. 4676-4679
Keyword(s):  
Mechanical Strength ◽  
Natural Resource ◽  
Strength Properties ◽  
Geopolymer Concrete ◽  
Composite Construction ◽  
Research Papers ◽  
River Sand ◽  
Durability Properties ◽  
Material Efficiency ◽  
Strength And Durability

Concrete which is at high necessity is both economically and environmentally facing contradictions. Invoking this issue as the need of time, Geopolymer has made its existance into construction. But in further stage cement and river sand are both causing depletion to natural resource. The hybrid geopolycreteis eco-friendly, non-corrosive and good durability. Substantial research papers has reported the studies on GGBS &Geopolymer. Composite construction involves the technique in which material efficiency of two different materials go hand in hand. This paper explains the mechanical behavior of GGBS blended Geopolymer Concrete and the results are discussed for its application in composite slab. The hybrid geopolycrete of M25 grade is tested for strength and durability properties by casting test specimens. The design for the slab is performed manually.

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