Properties of Geopolymer Concrete from Local Fly Ash (FA) and Palm Oil Fuel Ash (POFA)

2014 ◽  
Vol 803 ◽  
pp. 110-114 ◽  
Author(s):  
Monita Olivia ◽  
Alfian Kamaldi ◽  
Iskandar R. Sitompul ◽  
Ismed Diyanto ◽  
Edy Saputra
Keyword(s):  
Tensile Strength ◽  
Compressive Strength ◽  
Fly Ash ◽  
Flexural Strength ◽  
Palm Oil ◽  
Geopolymer Concrete ◽  
Palm Oil Fuel Ash ◽  
Fuel Ash ◽  
Oil Fuel ◽  
Source Materials

Geopolymer is an inorganic polymer from activation of source materials that rich of silica and alumina with alkaline activator. Previous studies reveal that the geopolymer has engineering properties and durability, which is equivalent or higher than the Ordinary Portland Cement (OPC) concrete. This paper presents properties of geopolymer concrete prepared with local Palm Oil Fuel Ash (POFA) and Fly Ash (FA) from agro-industrial waste in Riau Province, Indonesia. The POFA and FA were activated by a combination of sodium hydroxide and sodium silicate. The specimens were cured at room temperature for 24 hours before steam cured for another 24 hours at 60OC. Hardened properties namely compressive strength, tensile strength, flexural strength and modulus of elasticity, and water penetration of both POFA and FA geopolymer concrete were determined at 7, 14 and 28 days. Results showed that local POFA and FA as geopolymer source materials could produce mix with strength 19-22.5 MPa at 28 days. The compressive strength, tensile strength, flexural strength and modulus of elasticity of both geopolymer tended to increase slightly with time. In general, the results suggest that the local POFA and FA are potential as source material to produce geopolymer concrete.

scholarly journals The Effect of Variation of Molarity of Alkali Activator and Fine Aggregate Content on the Compressive Strength of the Fly Ash: Palm Oil Fuel Ash Based Geopolymer Mortar

2014 ◽  
Vol 2014 ◽  
pp. 1-13 ◽  
Author(s):  
Iftekhair Ibnul Bashar ◽  
U. Johnson Alengaram ◽  
Mohd Zamin Jumaat ◽  
Azizul Islam
Keyword(s):  
Compressive Strength ◽  
Fly Ash ◽  
Palm Oil ◽  
Alkaline Solution ◽  
Strength Development ◽  
Fine Aggregate ◽  
Palm Oil Fuel Ash ◽  
Alkali Activator ◽  
Fuel Ash ◽  
Oil Fuel

The effect of molarity of alkali activator, manufactured sand (M-sand), and quarry dust (QD) on the compressive strength of palm oil fuel ash (POFA) and fly ash (FA) based geopolymer mortar was investigated and reported. The variable investigated includes the quantities of replacement levels of M-sand, QD, and conventional mining sand (N-sand) in two concentrated alkaline solutions; the contents of alkaline solution, water, POFA/FA ratio, and curing condition remained constant. The results show that an average of 76% of the 28-day compressive strength was found at the age of 3 days. The rate of strength development from 3 to 7 days was found between 12 and 16% and it was found much less beyond this period. The addition of 100% M-sand and QD shows insignificant strength reduction compared to mixtures with 100% N-sand. The particle angularity and texture of fine aggregates played a significant role in the strength development due to the filling and packing ability. The rough texture and surface of QD enables stronger bond between the paste and the fine aggregate. The concentration of alkaline solution increased the reaction rate and thus enhanced the development of early age strength. The use of M-sand and QD in the development of geopolymer concrete is recommended as the strength variation between these waste materials and conventional sand is not high.

scholarly journals Influence of porosity on the tensile strength of fine grained mortar containing fly ash, palm oil fuel ash and rice husk ash

2019 ◽  
Vol 513 ◽  
pp. 012027
Author(s):  
Zalipah Jamellodin ◽  
Hamidah Mohd Saman ◽  
Azmi Ibrahim ◽  
Suraya Hani Adnan ◽  
Nur Hafizah Abd Khalid
Keyword(s):  
Tensile Strength ◽  
Fly Ash ◽  
Rice Husk ◽  
Palm Oil ◽  
Rice Husk Ash ◽  
Palm Oil Fuel Ash ◽  
Fine Grained ◽  
Fuel Ash ◽  
Oil Fuel

scholarly journals Compressive Strength and Microstructural of Palm Oil Fuel Ash-Fly Ash Based Geopolymer Mortar

2021 ◽  
Vol 1783 (1) ◽  
pp. 012081
Author(s):  
Muhammad Dwi Caesar Humaedi ◽  
Saloma ◽  
Hanafiah ◽  
Maulid M. Iqbal
Keyword(s):  
Compressive Strength ◽  
Fly Ash ◽  
Palm Oil ◽  
Palm Oil Fuel Ash ◽  
Fuel Ash ◽  
Oil Fuel

Compressive strength and microstructural analysis of fly ash/palm oil fuel ash based geopolymer mortar

2014 ◽  
Vol 59 ◽  
pp. 532-539 ◽  
Author(s):  
Navid Ranjbar ◽  
Mehdi Mehrali ◽  
Arash Behnia ◽  
U. Johnson Alengaram ◽  
Mohd Zamin Jumaat
Keyword(s):  
Compressive Strength ◽  
Fly Ash ◽  
Palm Oil ◽  
Microstructural Analysis ◽  
Palm Oil Fuel Ash ◽  
Fuel Ash ◽  
Oil Fuel

Properties of Concrete Containing Palm Oil Fuel Ash and Expanded Polystyrene Beads

2020 ◽  
Vol 12 (9) ◽  
Author(s):  
Mohamad Hairi Osman ◽  
◽  
Suraya Hani Adnan ◽  
Nurul Izlin Mazlin ◽  
Wan Amizah Wan Jusoh ◽  
...  
Keyword(s):  
Tensile Strength ◽  
Compressive Strength ◽  
Palm Oil ◽  
Expanded Polystyrene ◽  
Stress Strain ◽  
Normal Concrete ◽  
Palm Oil Fuel Ash ◽  
Fuel Ash ◽  
Axial Compressive Strength ◽  
Oil Fuel

This paper investigates the stress strain behaviour of concrete containing Palm Oil Fuel Ash and Expanded Polystyrene, axial compressive strength, tensile strength and modulus of elasticity. EPS-POFA concrete was prepared by substituting fine aggregates with EPS beads and cement replaced with POFA by 10%, 20% and 30%. Results of this study showed that EPS-POFA concrete exhibited low axial compressive strength, peak strain, tensile strength and elastic modulus when the EPS and POFA contents in concrete increased. However, the decrease in axial compressive strength of concretes with containing 10 to 20% EPS and POFA are suitable amount and acceptable to be applied on building structure as per stated in America Concrete Institute 318 with minimum specified compressive strength for structural concrete is 2500 psi (17 MPa). While, the failure of EPS-POFA concrete under axial compression gradually occurred and the concretes were able to retain the load after failure without full collapse. The slope of stress-strain curve of concretes with containing EPS and POFA was lower than that of normal concrete, demonstrating that the normal concrete more brittleness that EPS-POFA concretes.

Microstructural investigations of palm oil fuel ash and fly ash based binders in lightweight aggregate foamed geopolymer concrete

2016 ◽  
Vol 120 ◽  
pp. 112-122 ◽  
Author(s):  
Michael Yong Jing Liu ◽  
U. Johnson Alengaram ◽  
Manu Santhanam ◽  
Mohd Zamin Jumaat ◽  
Kim Hung Mo
Keyword(s):  
Fly Ash ◽  
Palm Oil ◽  
Lightweight Aggregate ◽  
Geopolymer Concrete ◽  
Palm Oil Fuel Ash ◽  
Fuel Ash ◽  
Oil Fuel

Compressive strength and microstructural analysis of fly ash/palm oil fuel ash based geopolymer mortar under elevated temperatures

2014 ◽  
Vol 65 ◽  
pp. 114-121 ◽  
Author(s):  
Navid Ranjbar ◽  
Mehdi Mehrali ◽  
U. Johnson Alengaram ◽  
Hendrik Simon Cornelis Metselaar ◽  
Mohd Zamin Jumaat
Keyword(s):  
Compressive Strength ◽  
Fly Ash ◽  
Palm Oil ◽  
Elevated Temperatures ◽  
Microstructural Analysis ◽  
Palm Oil Fuel Ash ◽  
Fuel Ash ◽  
Oil Fuel

Study of Fly Ash (FA) and Palm Oil Fuel Ash (POFA) Geopolymer Mortar Resistance in Acidic Peat Environment

2016 ◽  
Vol 841 ◽  
pp. 126-132 ◽  
Author(s):  
Monita Olivia ◽  
Chrisfela Wulandari ◽  
Iskandar R. Sitompul ◽  
Lita Darmayanti ◽  
Zulfikar Djauhari
Keyword(s):  
Compressive Strength ◽  
Fly Ash ◽  
Palm Oil ◽  
Peat Soil ◽  
Acid Resistance ◽  
Organic Content ◽  
Palm Oil Fuel Ash ◽  
Metal Structures ◽  
Fuel Ash ◽  
Oil Fuel

Peat is superficial deposit or soil with high organic content. The soil is highly compressible and acidic. The organic acidic water in swampy peat soil consists humic acid that is potentially corrosive to concrete and metal structures. Geopolymer is a material using waste from agro-industry such as fly ash (FA) and palm oil fuel ash (POFA) that is activated with alkaline solution. In this research, the acid resistance of geopolymer mortars from fly ash and palm oil fuel ash was measured by change in compressive strength and porosity. The samples were subjected to distilled water and acidic peat water. The OPC mortars showed a considerable decrease in compressive strength after subjected in peat water for up to 180 days. There was a fluctuated trend of geopolymer FA and a high decrease in compressive strength of geopolymer POFA after subjected to the peat water. The porosity of the geopolymer specimens was higher than the control mortars. However, it was observed that the geopolymer FA is more resistant to the acidic peat water than the geopolymer POFA due to stable aluminosilicate bonding.

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.

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