Wi et al. [2] investigates the effects of micropalm oil fuel ash (mPOFA) on compressive strength and pore structure of cement mortar. Cement was replaced with 10% by weight of mPOFA was found to give the highest level of compressive strength, achieving a 23% increase over the control specimens after 3 days of curing. ... the …
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 ...
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 concrete sample had a 16% and 9% higher tensile strength than the sample of 1.2% …
When studying the influence of pore characteristics of oil-well cement on strength, the relevant characteristics of oil-well cement must be considered, theoretical corrections should be applied, and regression analysis must be conducted and combined with experimental data to find the relationship between pore structure and strength.
Altwair et al. [97] conducted a test for the split tensile strength of concrete specimens with replacement levels of 0%, 0.4%, and 1.2%, and a water/binder ratio of 0.33. 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.
Influence of Palm Oil Fuel Ash and W/B Ratios on Compressive Strength, Water Permeability, and Chloride Resistance of Concrete. Wachilakorn Sanawung, …
The influence of fly ash on the concrete was analysed according to the substitution content at the age of 28 days. This study comprised the production of 50 specimens casted with 0%, 10%, 20%, 40% ...
Permeability is a measure of the amount of water, air, and other substances that can enter the concrete matrix. Concrete contains pores that can allow these substances to enter or depart. Permeability of concrete can be a primary reason for concrete deterioration due to reinforcing steel corrosion and other deterioration …
A total of four primary mixes were prepared in five groups to illustrate the performance of concrete soaked in oil for 6 months.The target 28-day compressive strength of these mixes was 17.5, 25 and 70 MPa.A superplasticizer complying with ASTM C-494 Type A, F was used for high-strength concrete, and an air-entraining agent was …
EFFECT OF OIL ON STRENGTH OF NORMAL AND HIGH. PERFORMANC CONCRETE. *Dr. Ali T. Jasim * Assist. lecturer Faris Abbas Jawad. *Dept. of Civil …
Consequently, the present study focused on the impact of diesel oil and bitumen on compressive strength of concrete. Marine sands were contaminated in the order of 2, 5 and 10% of both diesel oil ...
During conducted tests, the influence of mineral oil on the long-term strength of normal-strength and high-strength concretes has been documented [15, [20] [21][22]. After 280 days, the ...
Class G oil well cement with a density of 3.25 g/cm 3 and a median particle size of 19.5 μm were obtained from Akesu cement factory, Xinjiang, China. More detailed information about the cement such as particle size distribution, oxide composition and XRD profile have been given in our recent study [6].Since quantitative XRD method is used to …
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 ...
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 …
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 …
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 ...
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) …
The influence of crude oil contamination on the. compressive strength of concrete was investigated. and the following conclusions drawn: (a) The presence of crude oil in concrete making. hinders ...
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 …
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 …
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 …
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}, …
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 …
Influence of Oil Products on Strength and Durability of High Strength Latex Modified Concrete Coated by Epoxy
Vidal et al. [32] found that, in case of 50 MPa concrete, the strength ratio between compressed cubic samples confined by glued metal sheets and provided with Teflon sheets on the contact faces averages 0.35. Bandeira et al. [33] noted that grease as an anti-friction device reduced 40%, on average, the strength of samples confined with …
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 ...
that a little quantity of diesel oil asabout 2% brought about 3.2 % reduction in the 28 day compressive strength of concrete .Also, he found thatbeyond 58 days of concreting drastic reduction in ...
STRENGTH OF CONCRETE S. O. Osuji1 and E. Nwankwo2 1, 2 NGINEERINGDEPARTMENT OF CIVIL E, UNIVERSITY OF BENIN, ... Ayininuola [18] investigated the influence of diesel oil
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 …