This paper presents the results of an experimental investigation carried out to assess the effect of some selected curing techniques on the compressive strength of concrete produced by partially replacing ordinary Portland cement (OPC) with Palm Oil Fuel Ashes (POFA) at percentage levels 0%, 10% and 15%.
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Abstract. The huge demand for concrete is predicted to upsurge due to rapid construction developments. Environmental worries regarding the large amounts of …
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It has been found that the induction of 0.2 percent polypropylene fibers, by volume into concrete improves the bond resistance of concrete, especially at postcracking levels of corrosion; this is due to the reduced level of damage at the concrete-steel interface and to an intrinsic contribution in improving the confining and holding capacity of ...
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The purpose of this study is to know the influence of palm oil fuel ash and metakaolin on the strength of concrete and crack resistance of reinforced concrete beam. An ordinary portland cement has been used in the concretes production where it is an important material to be considered due to its nature that reacts with every substance …
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The results showed that a value of 3.52 MPa was obtained for the splitting tensile strength for the concrete sample with a 0.4% of POFA replacing cement. This …
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From this study, the compressive strength of concrete containing MK and POFA was higher than the control mix with the percentage of improvement in the range …
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With the incorporation of palm oil fuel ash in various incremental order of (0, 10, 20, 30, 40) % replacement by cement in concrete, certain amount of change in …
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The average results of tensile strength at splitting concrete with granite aggregate exposed to hydraulic oil (GH) and control oil (G-HK) stored in air-dry conditions during various testing periods are shown in Figure 11 a. The reduction in strength compared to control concrete respectively: 2.5% after 28 days, 2.4% after 84 days, and …
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With the incorporation of palm oil fuel ash in various incremental order of (0, 10, 20, 30, 40) % replacement by cement in concrete, certain amount of change in behavior in concrete strength parameters namely compression strength, split tensile …
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DOI: 10.1016/j.jestch.2023.101492 Corpus ID: 260221663; Influence of palm oil fuel ash on the high strength and ultra-high performance concrete: A comprehensive review @article{Hamada2023InfluenceOP, title={Influence of palm oil fuel ash on the high strength and ultra-high performance concrete: A comprehensive review}, …
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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) …
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Research highlights POFA concrete specimens prepared and subjected to various temperature levels. Two cooling systems viz. room temperature and water-spray were involved. Residual performance was higher in POFA concrete than in the normal concrete. water-cooling was realized to aggravate strength reduction compared with air …
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This research studies the effects of W/B ratios and palm oil fuel ash (POFA) on compressive strength, water permeability, and chloride resistance of concrete. POFA was ground until the particles retained on sieve number 325 were less than 5% by weight. POFA was used to partially replace OPC at rates of 15, 25, and 35% by …
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A mix proportion for LWC is quite different from the mix proportion of high strength concrete or normal strength concrete. For the LWC, which is to be produced from using OPS as aggregate requires an average cement/water ratio [8]. Hence cement/ water ratio of 0.5 was used in this research with mixing ration of 1:2:4. Cast iron mould of 150 x 150 x
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The serviceability and ultimate strength of reinforced concrete structures are greatly influenced by the strength of the bond mechanism between steel and concrete. The bond ensures that the structure remains in equilibrium under any given load. Oil as a formwork releasing agent on construction sites affects this bond. This paper presents an …
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The results showed that the compressive strength of concrete increase as the percentage of POFA increases, and it also showed that the curing by immersion in …
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The results showed that POFA concrete with W/B ratio of 0.40 had the compressive strengths ranging from 45.8 to 55.9 MPa or 82–94% of OPC concrete at 90 days, while POFA concrete with W/B ratio ...
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Experimental investigation, based on early data, suggests that palm oil fuel ash can suitably be used as a strong and durable cement replacement material in concrete. Pozzolanic …
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Request PDF | On May 1, 2011, Mohammad Ismail ⇑ and others published Influence of elevated temperatures on physical and compressive strength properties of concrete containing palm oil fuel ash ...
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ment levels of 0%, 10%, 20%, 30%, 40%, 50 and 60% on the mass-for-mass basis. The results show that the high. strength green concrete containing POF A has superior workability, strength and ...
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The influence of oil derivations with different viscosities, like fuel oil (FO) Kerosene (K) and Engine oil waste (EO), affects concrete in varying manners due to the ability of the fluid to be ...
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The costal areas of Nigeria are polluted with oil due to oil spillage and pipeline vandalism. The soils in these areas are contaminated to a certain extent. Consequently, the present study focused on the impact of diesel oil and bitumen on
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The influences of concrete strength and its confinement pressure on the penetration depth are studied in this paper. Four experiments of OWP penetration were conducted for concrete targets with ...
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Hydrocarbons can adversely affect the hydration of fresh concrete if intermixed i.e. they retard concrete strength gain. Results from analysis where a concentration of hydrocarbons was introduced into the mix water indicated the potential loss of 25% in strength. When hydrocarbons are in contact with hardened concrete, generally, there …
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The influence of oil viscosities (kerosene, crude oil, and diesel) on the high-performance concrete showed that increasing oil viscosity decreases mechanical strength [9]. Under the petroleum ...
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EFFECT OF CRUDE OIL CONTAMINATION ON THE COMPRESSIVE STRENGTH OF CONCRETE S. O. Osuji & E. Nwankwo Nigerian Journal of Technology, Vol. 34, No. 2, April 2015 260 drink and use for all their ...
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The present work reviews the various mineral admixtures used in concrete which modifies the concrete properties. In this study, cement is partially or completely replaced by different mineral admixtures such as fly ash, silica fume, rice husk ash, Ground Granulated Blast Furnace Slag, palm oil fuel ash and metakaolin. The strength …
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Experimental investigation, based on early data, suggests that palm oil fuel ash can suitably be used as a strong and durable cement replacement material in concrete. Pozzolanic materials, either natural or artificial, have been used for long in concrete construction. Being artificial pozzolana, fly ash and later rice husk.
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PDF | On Sep 1, 2023, Hussein Hamada and others published Influence of palm oil fuel ash on the high strength and ultra-high performance concrete: A comprehensive review | Find, read and cite all ...
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This research studies the effects of W/B ratios and palm oil fuel ash (POFA) on compressive strength, water permeability, and chloride resistance of concrete. POFA was ground until the particles retained on sieve number 325 were less than 5% by weight. POFA was used to partially replace OPC at rates of 15, 25, and 35% by weight of …
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In this study cement is being replaced with palm oil fuel ash by 5%, 7.5%, 10%, 12.5%, 15%, 17.5% and the strength tests like compressive strength test, tensile strength test, flexural strength test are performed and are compared with the results of conventional concrete of grade M 25 for 3,7 and 28 days.
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This research studies the effect of water/gas oil on the compressive strength properties of the concert. The concrete cubic specimens were prepared by using sulfate resistance cement (AL-Muthanna ...
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A mix proportion for LWC is quite different from the mix proportion of high strength concrete or normal strength concrete. For the LWC, which is to be produced from using OPS as aggregate requires an average cement/water ratio [8]. Hence cement/ water ratio of 0.5 was used in this research with mixing ration of 1:2:4. Cast iron mould of 150 x 150 x
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