Performance evaluation of Ultrahigh performance fibre reinforced concrete – A review

Shaikh, Faiz Uddin Ahmed; Luhar, Salmabanu; Arel, Hasan Şahan; Luhar, Ismail

doi:10.1016/j.conbuildmat.2019.117152

Cited by 122 publications

(45 citation statements)

References 119 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…[15]. However, due to the extremely low water-to-binder ratio of around 0.2 and the typically high binder content of 800-1200 kg/m 3 in UHPC, the shrinkage of UHPC (usually the total shrinkage > 500 µε) is greater than that of the conventional high performance concrete (HPC) [16][17][18]. Generally, the autogenous shrinkage of UHPC accounts for a larger proportion of total shrinkage, while the dry shrinkage is smaller.…”

Section: Introductionmentioning

confidence: 99%

Effects of Steel Slag Powder and Expansive Agent on the Properties of Ultra-High Performance Concrete (UHPC): Based on a Case Study

Cheng

et al. 2020

Materials

View full text Add to dashboard Cite

In view of the performance requirements of mass ultra-high performance concrete (UHPC) for the Pang Gong bridge steel cable tower in China, the UHPC incorporating of steel slag powder and hybrid expansive agents is optimized and prepared. The effects of steel slag powder and hybrid expansive agents on the hydration characteristics and persistent shrinkage of UHPC are investigated. The results indicate that 15 wt.% steel slag powder and 5 wt.% hybrid expansive agents can effectively reduce the drying shrinkage deformation of UHPC with a slight decrease of strength. Heat flow calorimetry results show that the incorporation of steel slag powder and expansive agents decreases the hydration heat at three days. Moreover, the obtained adiabatic temperature rise of UHPC is 59.5 °C and the total shrinkage value at 180 days is 286 με. The hydration heat release changes of large volume UHPC in the steel-concrete section of cable tower is agreed with the result of adiabatic temperature rise in the laboratory.

show abstract

Section: Introductionmentioning

confidence: 99%

Effects of Steel Slag Powder and Expansive Agent on the Properties of Ultra-High Performance Concrete (UHPC): Based on a Case Study

Cheng

et al. 2020

Materials

View full text Add to dashboard Cite

show abstract

“…One key concern is its detrimental environmental impact. Each ton of OPC production is answerable to equal quantity of Carbon Dioxide emissions into the atmosphere [9][10][11][12], and that is the core reason for 7% of global CO 2 emissions through this blameworthy process [13][14][15][16].…”

Section: Introductionmentioning

confidence: 99%

Application of Seawater and Sea Sand to Develop Geopolymer Composites

Luhar¹,

Luhar²

2020

IJRTE

Self Cite

View full text Add to dashboard Cite

Worldwide, concrete is predominantly used as a versatile building material with its highest consumption on the earth. Nevertheless, its exigency accelerates day by day exhausting restricted natural resources in its manufacturing. Consequently, in order to prevent the degradation of these natural confined aggregates resources, it’s highly essential to employ other alternative profuse materials in their place. On the one hand, the sea Sand is existing in huge quantity below seas and oceans while on the other hand, restricted river Sand resources are being quarried haphazardly and hence reaching to their end. What’s more, to flashlights on, the production of every ton of cement contributes to the emission of an almost equal quantity of CO2 with high energy consumption. Also, it is worth mentioning that freshwater resources are in the limited quantity and, therefore, mankind is not getting sufficient fresh water even to drink in some corners of the world. In present experimental investigations, all the above burning dilemmas are kept in mind and hence, the sea Sand is used as an alternative to river Sand whereas sea water is used instead of distilled water for laboratory investigations on the properties of Geopolymer concrete and mortar in the total absence of Ordinary Portland Cement. The results demonstrated that the sea sand and seawater have no doubt affected the strength of Geopolymer concrete and mortar but just insignificantly.

show abstract

“…Unfortunately, a ton of carbon dioxide (CO 2 ) produced in one ton of cement emanates, a main greenhouse gas, into the atmosphere increasing global warming [8,9]. Presently, the world"s cement industries contribute around 7% of world CO 2 emissions [10][11][12]. Therefore, it is highly desirable to produce a sustainable concrete that helps to mitigate the carbon footprint of concrete.…”

Section: Introductionmentioning

confidence: 99%

Rubberized Geopolymer Concrete: Application of Taguchi Method for Various Factors

Luhar*,

Luhar

2020

IJRTE

Self Cite

View full text Add to dashboard Cite

The effect of different factors on the compressive strength of fly ash based rubberized geopolymer concrete has been established using Taguchi method. The factors include alkaline solution/fly ash ratio; ratio of Na2SiO3 /NaOH, molarity concentration of NaOH, temperature of curing, time period for curing, water content, rest period and amount of superplasticizer as an additional material are considered. Total twenty-seven experiments have been conducted in accordance with Taguchi orthogonal array L27. Different mixtures of the fly ash based rubberized geopolymer concrete have been examined for compressive strength at seven days. ANOVA (Variance Analysis) method was used to evaluate the influence of each factor and to identify the test mixture with the highest compressive resistance. The results of experiments show that the alkaline-to-fly ash mixture is 0.35, Na2SiO3 /NaOH 2.5, 14 M NaOH, 90°C temperature for curing, 48-hour curing time, 20% water content, 1 day resting period, and 2 percent addition of superplasticizer acquires the greatest compression strength of 59.08 MPa. The curing temperature was also identified as the main factor influencing a rubberized fly ash-based geopolymer concrete's compression strength.

show abstract

Performance evaluation of Ultrahigh performance fibre reinforced concrete – A review

Cited by 122 publications

References 119 publications

Effects of Steel Slag Powder and Expansive Agent on the Properties of Ultra-High Performance Concrete (UHPC): Based on a Case Study

Effects of Steel Slag Powder and Expansive Agent on the Properties of Ultra-High Performance Concrete (UHPC): Based on a Case Study

Application of Seawater and Sea Sand to Develop Geopolymer Composites

Rubberized Geopolymer Concrete: Application of Taguchi Method for Various Factors

Contact Info

Product

Resources

About