Browsing by Author "937799e2-5c90-4654-8b76-f8ebd773517a"
Now showing items 1-19 of 19
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Durability and mechanical properties of seashell partially-replaced cement
(Elsevier BV, 2020-09)This research investigates the possibility of grinding and burning bivalve clam seashells to produce seashell ash powder. This ash is used to partially replace cement by 5, 10, 15 and 20% by weight. These mixes are tested ... -
Durability and strength characteristics of high-strength concrete incorporated with volcanic pumice powder and polypropylene fibers
(Elsevier BV, 2020-01)In this paper, the partial replacement of volcanic pumice powder (VPP) was investigated for use as a supplementary cementitious material. High-strength concrete (HSC) was prepared using two sets of VPP (10% and 20%) ... -
Effect of high temperatures on mechanical, radiation attenuation and microstructure properties of heavyweight geopolymer concrete
(2021-10-25)Abstract. Heavyweight geopolymer concrete (HWGC) is a new concrete type that combines the benefits of geopolymer concrete (GC) and heavyweight concrete. HWGC can be used to produce particular properties such as high radiation ... -
Effects of nano cotton stalk and palm leaf ashes on ultrahigh-performance concrete properties incorporating recycled concrete aggregates
(Elsevier BV, 2021-10)The demand for partial replacement and complementary products of cement to enhance the properties of concrete and reduce the environmental pollution from the cement industry is recently increasing. Nano cotton stalk ash ... -
Efficiency of treated and untreated palm oil fuel ash as a supplementary binder on engineering and fluid transport properties of high-strength concrete
(Elsevier, 2016)The primary focus of this work was to utilize the waste of palm oil industry as a supplementary binder for producing high strength concrete (HSC) whose strength reached 116 MPa. The treatment of ground POFA (GPOFA) to ... -
Flexural Strength Behavior of Composite UHPFC-Existing Concrete
(Trans Tech Publications, 2013)Article Preview Article Preview Ultra high performance fiber concrete (UHPFC) is an advanced formula concrete that is proven to be more superior than conventional concrete because it embrace the qualities of steel and ... -
Improving the engineering and fluid transport properties of ultra-high strength concrete utilizing ultrafine palm oil fuel ash
(Japan Concrete Institute, 2014)Ground treated ultrafine-POFA obtained from palm oil industry was heat-treated to remove excess carbon. The varied proportion (17%, 30% and 40%) of UPOFA was incorporated into the ultra-high strength concrete (UHSC) to ... -
Influence of Palm Oil Fuel Ash on Properties of High-Strength Green Concrete
(2019-06)Palm oil ash wastes are normally used as fuel to heat up boiler for electricity generation in palm oil mills. This process leads to the production of unwanted ash residue which is known as palm oil fuel ash (POFA). The ... -
Influence of steam curing regimes on the properties of ultrafine POFA-based high-strength green concrete
(Elsevier BV, 2021-06)This paper investigated the influence of steam curing regimes on the properties of high-strength green concrete (HSGC) containing varying quantities of ultra-fine palm oil fuel ash (U-POFA) from 0%, 20%, 40% and 60% from ... -
Microstructural analysis of the adhesion mechanism between old concrete substrate and UHPFC
(Taylor & Francis, 2014)The performance of any repaired concrete structure, and thus its service life, depends on the quality of the interfacial transition zone of the composite system formed by the repair material and the existing concrete ... -
Potential applications of geopolymer concrete in construction: A review
(2021-12-01)The environmental aspects of sustainable development in the construction industry consist of the utilization of secondary raw materials and materials which can be recycled in the design and construction of new structures. ... -
Pozzolanic reactivity of ultrafine palm oil fuel ash waste on strength and durability performances of high strength concrete
(Elsevier, 2017)Palm oil fuel ash (POFA) was utilized as a pozzolanic material in varied quantities to produce high-strength concretes (HSCx) of above 90 MPa, with significant improvement in its engineering and fluid transport properties. ... -
Properties and durability of concrete with olive waste ash as a partial cement replacement
(Techno Press, 2021-01)This research aims to study the utilization of olive waste ash (OWA) in the production of concrete as a partial substitute for cement. Effects of using OWA on the physical and mechanical properties of concrete mixtures ... -
PROPERTIES OF ULTRA-HIGH PERFORMANCE FIBER CONCRETE (UHPFC) UNDER DIFFERENT CURING REGIMES
(IAEME Publication, 2017)Ultra-High Performance Fiber Concrete (UHPFC) is one of the breakthroughs in the 21st century in the field of concrete technology where this composite material providing an important improvement in strength, workability, ... -
Strength and transport characteristics of volcanic pumice powder based high strength concrete
(Elsevier BV, 2019-08)In this study, the potency of volcanic pumice powder (VPP) as a supplementary cementitious material at varied levels (0%, 10%, 20%, and 30%) in high strength concrete (HSC) was investigated for its pozzolanic reactivity ... -
The effect of steam curing regimes on the chloride resistance and pore size of high–strength green concrete
(Elsevier BV, 2021-04)Since diminishing the consumption of cement has many benefits, ongoing research on the incorporation of the industrial/agricultural wastes as an alternative or partial substitution for cement is of paramount significance. ... -
The role of silica fume in the adhesion of concrete restoration systems
(Trans Tech Publications, 2013)Article Preview Article Preview Article Preview The weak interfacial transition zone between new and old concrete is always paid much attention and controls many properties of repaired concrete, The present work reports a ... -
Workability, Setting Time and Strength of High-Strength Concrete Containing High Volume of Palm Oil Fuel Ash
(2018)Methods: The workability (slump, slump loss, and compacting factor), initial and final setting times and strength in both forms of concrete were investigated. Results and Conclusion: The results showed that HSCu had improved ...
