scholarly journals Durability Indicators for Sustainable Self-Consolidating High-Strength Concrete Incorporating Palm Oil Fuel Ash

2021 ◽  
Author(s):  
Md. Abdus Salam ◽  
Md. Safiuddin ◽  
Mohd. Zamin Jumaat
Keyword(s):  
Compressive Strength ◽  
Water Absorption ◽  
High Strength Concrete ◽  
High Strength ◽  
Palm Oil Fuel Ash ◽  
Filling Ability ◽  
Fuel Ash ◽  
Hardened Properties ◽  
Oil Fuel ◽  
Passing Ability

This paper presents the durability indicators for sustainable self-consolidating high-strength concrete (SCHSC) including palm oil fuel ash (POFA) as a supplementary cementing material (SCM). SCHSC mixes were prepared by varying the water to binder (W/B) ratio and POFA content. The W/B ratio was varied in the range of 0.25 to 0.40, and the POFA content differed in the range of 10–30% to produce the desired SCHSC mixes. The tests conducted on the freshly mixed SCHSCs to evaluate their filling ability, passing ability, and segregation resistance were slump flow, J-ring flow, and sieve segregation, respectively. To evaluate the durability of the hardened SCHSCs, the compressive strength, water absorption, and permeable porosity were examined along with the ultrasonic pulse velocity (UPV). The correlations between different hardened properties were derived to ascertain the durability indicators for sustainable SCHSCs. It was observed that most of the SCHSCs possessed excellent filling ability and passing ability with adequate segregation resistance. The test results also revealed that the compressive strength and UPV increased, whereas the water absorption and permeable porosity decreased with a lower W/B ratio and a higher amount of POFA (up to 20% weight content). Moreover, strong correlations were found between the different hardened properties of SCHSC. These correlations were used to determine the durability indicators for sustainable SCHSC with respect to compressive strength, permeable porosity, and water absorption. In accordance with the derived durability indicators, the sustainable SCHSC mixes produced in this study had the durability levels varying from “high” to “outstanding”.

scholarly journals Durability Indicators for Sustainable Self-Consolidating High-Strength Concrete Incorporating Palm Oil Fuel Ash

2021 ◽  
Author(s):  
Md. Abdus Salam ◽  
Md. Safiuddin ◽  
Mohd. Zamin Jumaat
Keyword(s):  
Compressive Strength ◽  
Water Absorption ◽  
High Strength Concrete ◽  
High Strength ◽  
Palm Oil Fuel Ash ◽  
Filling Ability ◽  
Fuel Ash ◽  
Hardened Properties ◽  
Oil Fuel ◽  
Passing Ability

This paper presents the durability indicators for sustainable self-consolidating high-strength concrete (SCHSC) including palm oil fuel ash (POFA) as a supplementary cementing material (SCM). SCHSC mixes were prepared by varying the water to binder (W/B) ratio and POFA content. The W/B ratio was varied in the range of 0.25 to 0.40, and the POFA content differed in the range of 10–30% to produce the desired SCHSC mixes. The tests conducted on the freshly mixed SCHSCs to evaluate their filling ability, passing ability, and segregation resistance were slump flow, J-ring flow, and sieve segregation, respectively. To evaluate the durability of the hardened SCHSCs, the compressive strength, water absorption, and permeable porosity were examined along with the ultrasonic pulse velocity (UPV). The correlations between different hardened properties were derived to ascertain the durability indicators for sustainable SCHSCs. It was observed that most of the SCHSCs possessed excellent filling ability and passing ability with adequate segregation resistance. The test results also revealed that the compressive strength and UPV increased, whereas the water absorption and permeable porosity decreased with a lower W/B ratio and a higher amount of POFA (up to 20% weight content). Moreover, strong correlations were found between the different hardened properties of SCHSC. These correlations were used to determine the durability indicators for sustainable SCHSC with respect to compressive strength, permeable porosity, and water absorption. In accordance with the derived durability indicators, the sustainable SCHSC mixes produced in this study had the durability levels varying from “high” to “outstanding”.

scholarly journals Modeling of Compressive Strength for Self-Consolidating High-Strength Concrete Incorporating Palm Oil Fuel Ash

Materials ◽  
2016 ◽  
Vol 9 (5) ◽  
pp. 396 ◽  
Author(s):  
Md. Safiuddin ◽  
Sudharshan Raman ◽  
Md. Abdus Salam ◽  
Mohd. Jumaat
Keyword(s):  
Compressive Strength ◽  
Palm Oil ◽  
High Strength Concrete ◽  
High Strength ◽  
Palm Oil Fuel Ash ◽  
Strength Concrete ◽  
Fuel Ash ◽  
Oil Fuel

Influence of Silica Fume Inclusion on the Compressive Strength Development of High Strength Concrete Containing High Volume of Palm Oil Fuel Ash

2015 ◽  
Vol 802 ◽  
pp. 214-219 ◽  
Author(s):  
Aktham Hatem Alani ◽  
Megat Azmi Megat Johari
Keyword(s):  
Compressive Strength ◽  
Palm Oil ◽  
High Strength Concrete ◽  
High Strength ◽  
High Volume ◽  
Strength Development ◽  
Palm Oil Fuel Ash ◽  
Fuel Ash ◽  
Compressive Strength Development ◽  
Oil Fuel

The influence of silica fume (SF) inclusion on the compressive strength development of high strength concrete (HSC) containing high volume of palm oil fuel ash (POFA) has been investigated. A HSC containing 100% ordinary Portland cement (OPC) and another HSC mix with 50% POFA as part of the binder were prepared. Due to the reduction in early strength of the HSC with the inclusion of high volume of POFA in the binary blended binder HSC, attempt was made to partially replace the OPC with SF at 5, 10, 15 and 20%, thus creating a ternary blended binder HSC. The results show that the compressive strength development of the HSC containing high volume of POFA was significantly improved with the inclusion of SF. The ternary blended binder HSC with 15% SF exhibited the highest increase in early age strength, even though it did not surpass the OPC-HSC, and it provided the highest strength at 7 and 28 days in comparison to other HSC mixes. Thus, ternary blended binder containing more than 60% supplementary cementitious material (POFA and SF) could be utilized to produce HSC.

scholarly journals Investigation on the Properties of Mortar Containing Palm Oil Fuel Ash and Seashell Powder as Partial Cement Replacement

CONSTRUCTION ◽  
2021 ◽  
Vol 1 (2) ◽  
pp. 50-61
Author(s):  
K. Hasan ◽  
F.M. Yahaya ◽  
A. Karim ◽  
Rokiah Othman
Keyword(s):  
Compressive Strength ◽  
Flexural Strength ◽  
Water Absorption ◽  
Palm Oil ◽  
High Strength ◽  
Sustainable Construction ◽  
Partial Replacement ◽  
Palm Oil Fuel Ash ◽  
Fuel Ash ◽  
Oil Fuel

The concept of utilizing various types of wastes, such as agricultural dumps and marine by-products, as a partial replacement of cement has gained a great interest to develop eco-friendly and economical mortars for sustainable construction. This study aims to evaluate the feasibility of using palm oil fuel ash (POFA), an agro-industrial waste by-product from palm oil mills and seashell powder (SSP) derived from seashells, a marine waste material partial replacement of cement in mortars. The water to binder (w/b) ratio of 0.49 and the sand to binder (s/b) ratio of 2.54 with 0% to 30% of ordinary portland cement (OPC) by weight was replaced with POFA and SSP, and the resulting mortar samples were tested for mechanical properties and durability in this study. The compressive strength, flexural strength, water absorption, and flow table tests were performed in this study for different percentages of POFA and SSP after 7, 28, and 130 days. The results showed that the 30% POFA incorporated mortars achieved the highest compressive strength (35.12N/mm2), flexural strength (4.06N/mm2), high density with less water absorption (4.79%) after 130 days of curing and the high strength mortar with less water flow (22.2cm) during casting. Also, it found that the 25% POFA and 5% SSP incorporated mortars attained acceptable results as supplementary cementing material. This study suggests that the POFA and SSP incorporated mortars could be used in concrete for sustainable development of construction through the efficient valorization of waste materials.

Correlations between Fresh Properties of Self-Consolidating Concrete Including Palm Oil Fuel Ash

2011 ◽  
Vol 250-253 ◽  
pp. 409-416 ◽  
Author(s):  
Md. Safiuddin ◽  
Md. Abdus Salam ◽  
Mohd Zamin Jumaat
Keyword(s):  
Palm Oil ◽  
Flow Time ◽  
Fresh Properties ◽  
Palm Oil Fuel Ash ◽  
Self Consolidating Concrete ◽  
Slump Flow ◽  
Filling Ability ◽  
Fuel Ash ◽  
Oil Fuel ◽  
Passing Ability

Palm oil fuel ash (POFA) has been used successfully as a supplementary cementing material in various types of concrete. In the present study, self-consolidating concrete (SCC) was produced by using POFA as a partial replacement of ordinary portland cement (OPC). In total, sixteen SCC mixes were prepared by varying water to binder (W/B) ratio, POFA content, and high-range water reducer (HRWR). POFA was used by replacing 0–30% of OPC by weight at the W/B ratios ranging from 0.25 to 0.40. The filling ability, passing ability and segregation resistance of various SCC mixes were investigated. The filling ability was determined with respect to slump flow, 50-cm slump flow time, inverted slump cone flow spread and time, and V-funnel flow time. The passing ability was examined with respect to J-ring flow. In addition, the segregation resistance was assessed with regard to sieve segregation index and column segregation factor. Based on the data obtained, the correlations for the fresh properties of SCC were sought. The experimental findings showed strong correlations between most of the fresh properties of SCC.

scholarly journals Improving the Engineering and Fluid Transport Properties of Ultra-High Strength Concrete Utilizing Ultrafine Palm Oil Fuel Ash

2014 ◽  
Vol 12 (4) ◽  
pp. 127-137 ◽  
Author(s):  
Ahmad N. Mohammed ◽  
Megat Azmi Megat Johari ◽  
Abdullah M. Zeyad ◽  
Bassam A. Tayeh ◽  
Moruf O. Yusuf
Keyword(s):  
Transport Properties ◽  
Palm Oil ◽  
High Strength Concrete ◽  
Fluid Transport ◽  
High Strength ◽  
Palm Oil Fuel Ash ◽  
Strength Concrete ◽  
Fuel Ash ◽  
Oil Fuel

scholarly journals The Compressive Strength and Water Absorption of Railway’s Concrete Sleepers Containing Palm Oil Fuel Ash (POFA) as a Cement Replacement Material

2021 ◽  
Vol 1200 (1) ◽  
pp. 012001
Author(s):  
A S Nurfarhanna ◽  
A Suraya Hani ◽  
O Mohamad Hairi ◽  
J Zalipah ◽  
AH Noor Azlina ◽  
...  
Keyword(s):  
Compressive Strength ◽  
Water Absorption ◽  
Palm Oil ◽  
Pozzolanic Reaction ◽  
Palm Oil Fuel Ash ◽  
Cement Replacement ◽  
Fuel Ash ◽  
Oil Fuel ◽  
Pozzolanic Properties ◽  
Curing Age

Abstract Railway’s concrete sleepers demand high consumption of cement which generates higher energy assumption and carbon emission. Meanwhile, in Malaysia, around 100 tonnes of palm oil fuel ash (POFA) were disposed of in the landfill, which endangering environmental health. However, this POFA have pozzolanic properties that can be employed as cementitious material. Therefore, this study aimed to produce a sustainable concrete sleeper by using POFA as a cement replacement material focusing on the compressive strength and water absorption performance. Concrete samples with a strength grade of 55MPa and w/c of 0.35 were prepared with three design mixes containing 0% (control), 20%(POFA20), and 40%(POFA40) of POFA. For the compressive strength test, a compression machine was used. Meanwhile, the water absorption was measured at atmospheric pressure. Both tests were conducted at 7 and 28 days of curing age. The results show that as the curing age increases, their water absorption and compressive strength improves, indicating a pozzolanic reaction. In terms of POFA content, the water absorption increases by 14% and 54% for POFA20 and POFA40, respectively. Meanwhile, the compressive strength reduced by 39% for POFA20 and 67% for POFA40. Since POFA20 meets the standards, it is however applicable in slab tracks.

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