Mechanical Properties and Microstructure of Oil Palm Fiber (OPF) Partial Replacement of Cement

2020 ◽  
Vol 861 ◽  
pp. 482-487
Author(s):  
Gunalaan Vasudevan

This research showed the results of experiments effect use of oil palm fibre (OPF) from oil palm industry as partial replacement for ordinary Portland cement. Research on the reuse of waste materials in the concrete industry has been quite intensive in the past decade. The objective of this research is to identify the Effect of oil palm fibre as a partial cement replacement in the production of concrete. After the treatment, the economical ways to dispose of it is by using landfill method. But due to a limited landfill site in Malaysia and it is the temporary solution for the disposal of the waste, it becomes a problem to Malaysia and the number of the oil palm fibre keeping increase year by year because of the population increase year by year too. The results showed that oil palm fibre (OPF) greatly improved the compressive and flexural strength of concrete. The rate of water absorption of oil palm fibre (OPF) concrete was reduced as oil palm fibre filled up the existing voids, making it more impermeable. However, the compressive strength of the oil palm fibre concrete decreases gradually when the amount of oil palm fibre (OPF) increased. It can be concluded that the optimum percentage of oil palm fibre as a partial cement replacement is 10%. In this direction, an experimental investigation of ultrasonic pulse velocity, carbonation test, compressive strength, flexural strength and water absorption was undertaken to use oil palm fiber and admixtures as partial replacement for cement in concrete.

2021 ◽  
Vol 29 (4) ◽  
Author(s):  
Md Azree Othuman Mydin

Worldwide, the construction industry has acknowledged the future demand for lightweight construction materials, with high workability, self-compacting, and environmentally friendly. Given this demand, recent innovative material namely foamed concrete (FC), has been found to reduce normal concrete’s weight potentially. However, while FC made with Ordinary Portland Cement has good compressive strength, other characteristics such as tension are relatively weak given the number of micro-cracks. Therefore, the study focused on the potential use of oil palm fibres in FC regarding their durability and mechanical properties. Notably, one of the major issues faced in the construction of reinforced FC is the corrosion of reinforcing steel which affects the behaviour and durability of concrete structures. Hence, in this study, oil palm fibres were added to improve strength and effectively reduce corrosion. Five types of fibre generated from oil palm waste were considered: oil palm trunk, oil palm frond, oil palm mesocarp and empty fruit bunch consisting of the stalk and spikelets. Specimens with a density of 1800 kg/m3 were prepared in which the weight fraction of the fibre content was kept constant at 0.45% for each mixture. Testing ages differed in testing and evaluating the parameters such as compressive strength, flexural strength, tensile strength, porosity, water absorption, drying shrinkage and ultrasonic pulse velocity. The results showed that the incorporation of oil palm fibre in FC helped reduce water absorption, porosity and shrinkage while enhancing the compressive, flexural and tensile strength of FC.


2020 ◽  
Vol 20 (2) ◽  
pp. 205
Author(s):  
Nurul Farhanah Mohd Kusaimi ◽  
Fazlena Hamzah ◽  
Junaidah Jai ◽  
Nurul Asyikin Md Zaki ◽  
Norliza Ibrahim

Eco Processed Pozzolan (EPP) is derived from Spent Bleaching Earth (SBE) by the calcination process via heat treatment in the palm oil refining industry. EPP can be used as a partial replacement of cement as it contains a high amount of silica and has pozzolanic properties. Besides its properties, the sustainable production of EPP in the palm oil industry, abundantly available, and cheaper raw material have opened an opportunity to explore it as a cement substitute in pavement industries. This research aimed to study the properties of pozzolanic EPP and discover its potential as a partial substitute of cement in the pavement block's development. The compressive strength and water absorption of the formulated pavement block using EPP were analyzed in this study. Two sets of paving blocks were developed, namely, Set A, EPP was added as a partial replacement of the cement in pavement formulation at 20% - 90%, while in Set B, integration of EPP and Fly Ash (FA) was used as a partial replacement of the cement. The results indicated that the maximum addition of EPP into pavement formulation was 20%. The increment of EPP as a cement substitute in a formulation of more than 20% has reduced the compressive strength and increased the water absorption of the pavement. Simultaneously, the addition of FA and EPP in the formulation of hybrid pavement in Set B shows that the addition of FA has improved the compressive strength of the pavement and less water absorption was detected. The pavement’s highest compressive strength by addition of FA was 36MPa at the EPP was added of 15 – 20%. The study indicated that EPP could be used as a partial substitute of the cement, but addition of FA might require to improve pavement compressive strength.


2021 ◽  
Vol 4 (4) ◽  
pp. 432-437
Author(s):  
Muhammad Magana Aliyu ◽  
Muhammad Musa Nuruddeen ◽  
Yahaya Atika Nura

This research was carried out to investigate the effect of partially replacing cement with quarry dust in cement-sand mortar. Tests including setting times, water absorption, compressive strength and density test were carried out on mortar with cement partially replaced with 0%, 5%, 10%, 15%, 20%, 25% and 30% quarry dust and presented. Experimental results show that replacement of quarry dust as partial replacement of cement in cement-sand mortar decrease the initial and final setting times of cement paste and increase the water absorption of the mortar. The partial replacement shows an improvement of compressive strength at 5% quarry dust content after which there is a decrease with increase in quarry dust content at all the ages. The increase in compressive strength at 5% indicates possible pozzalanic activity at that level. Thus quarry dust can be utilized as cement replacement material at 5% dust content. Above this it can be utilized as fine aggregate replacement for use in low-strength mortar applications


2016 ◽  
Vol 78 (8) ◽  
Author(s):  
Habeeb Lateef Muttashar ◽  
M. W. Hussin ◽  
Jahanger Mirza ◽  
Ghasan Fahim Huseien

This paper represents the effects of using waste generated from palm oil industries like ash, shell and fibre on the engineering properties of mortar. Palm Oil Fuel Ash (POFA) was used as cement replacement up to 60% and Oil Palm Kernel Shell (OPKS) as sand replacement in mortar mixture. The Oil Palm Fibre was added to increase the strengthening performance of mortar. The method used to find the water binder ratio was by trial and error method with 1:3 ratio of cement to sand. The cubes size of 70mm x 70mm x 70mm, beams size of 40mm x 40mm x 160mm, and cylinders size of 70mm diameter and 150mm height, were cast and tested for compressive strength, flexural strength and splitting tensile strengths of mortar. Samples were cured in water before testing it at 7, 28, and 60 days. Also, the water absorption of mortar was tested at the age of 28 days. The results showed that oil palm fibre provided more advantages and increase the strength properties especially in the flexural and tensile strength. The addition of Oil Palm Kernel Shell reduced the density of mortar and it can be used for lightweight application.  The test results also showed that as the POFA ratio increased, the compressive strength of mortar decreased. However, as OPKS ratio increased, the density was found to be decreased. The mix proportions using 60% POFA and 20% OPKS was considered as the optimum mix design. The mortar showed optimum strength at 9% with the addition of fibre.


2020 ◽  
Vol 8 (5) ◽  
pp. 4476-4481

surely glass powder in concrete can be considered one of the most important or relevant fibers as partial replacement aiming to change or improving the properties of concrete. This work was made in the endeavor to know the influence of glass powder when is mixed or replacing cement in concrete using proportion 0%, 10%, 20% and 30%, using m20 grade of concrete. Considered two factors as age and mix proportion, was found the compressive results, also the result of tensile and flexural strength results at 3 days, another one at 7 days, at 28 days and 90 days curing concrete, the study was conducted, using cubes specimens after testes was found reporting that using glass powder in the m20 grade of mix design of concrete as cement replacement shows many advantages in its application on concrete, not only in reducing the co2 emissions to earth’s atmosphere as is written on the first part of this work but also the result show that the proportion up to 20% can improve its compressive strength in concrete, in terms of flexural strength was found increasing up to 10% of glass powder when used in concrete and was found also the optimal proportion in split tensile at 20% of glass powder.


Author(s):  
Sujan Debnath ◽  
Abdul Hamid Abdullah

The effects of particle sizes (range 1, 2 and 3) and particle loading (5wt%, 10wt%, 15wt%, 20wt% and 25wt %) on the mechanical properties (tensile and flexural properties), water absorption properties and morphology analysis (optical microscope) of epoxy composites reinforced with cockle shell particles and hybrid epoxy based composite reinforced with cockle shell particles and oil palm fibres were investigated. Pre-chemical treatment of alkaline solution (NaOH) with 5% concentration was used to treat the oil palm fibre prior to the fabrication of composite. Based on the findings, the composite with smaller size and lower loading of cockle shell particle showed higher improvement in mechanical properties. Meanwhile, the hybrid epoxy based composite reinforced with smaller size of cockle shell particle and oil palm fibre showed enhancement in mechanical properties. For water absorption analysis, cockle shell particle-epoxy composites with lower particle loading showed less water uptake.


2017 ◽  
Vol 866 ◽  
pp. 176-179
Author(s):  
Woranuch Deelaman ◽  
Manoch Lakthandee ◽  
Wannisa Inchan ◽  
Panupong Srilarat ◽  
Nattha Panthong

The objective of this work was to determine the optimum formulation for producing planting pots, by varying ratio of oil palm fiber and carbon powder contents. The decay rate, swelling rate, water absorption and released elements (nitrogen, phosphorous and potassium) from decay of plant pots were investigated. In addition, the compressive strength of samples was evaluated from compression machine. The results show that the optimum ratio between weight of carbon powder and oil palm fiber for producing plant pots was 315:259. It was found maximum compressive strength is 16.4 kN/cm2.The percentage of the decay rate of samples within 45 days is 26.08 %wt. The rates of swelling for 2 and 24 h are 3.09 and 6.88%, respectively. Moreover, the result of water absorption shows that the percentage of water absorption is 94 %wt. The decomposition of plant pots was found to release the essential elements for plant growth.


2019 ◽  
Vol 2019 ◽  
pp. 1-12 ◽  
Author(s):  
Haiming Chen ◽  
Yangchen Xu ◽  
Donglei Zhang ◽  
Lingxia Huang ◽  
Yuntao Zhu ◽  
...  

This work is aimed to study the possibility of recycling plastic waste (polypropylene (PP)) as aggregate instead of sand in the manufacturing of mortar or concrete. For this, an experimental study was carried out to evaluate the influence of nano-SiO2 and recycled PP plastic particles' content on physical, mechanical, and shrinkage properties and microstructure of the mortars with recycled PP plastic particles. The sand is substituted with the recycled PP plastic particles at dosages (0%, 20%, 40%, and 60% by volume of the sand). The nano-SiO2 content is 5% by weight of cement. The physical (porosity, water absorption, and density), mechanical (compressive and flexural strength) and shrinkage properties of the mortars were evaluated, and a complementary study on microstructure of the interface between cementitious matrix and PP plastic particles was made. The measurements of physical and mechanical properties showed that PP-filled mortar had lower density and better toughness (higher ratio of flexural strength to compressive strength). However, the compressive strength and flexural strength of PP-filled mortar is reduced, and the porosity, water absorption, autogenous shrinkage, and dry shrinkage increased as compared to normal cement mortar. The addition of nano-SiO2 reduced the porosity, water absorption, and drying shrinkage of PP-filled mortar and effectively improved the mechanical properties, but increased its autogenous shrinkage. A microscopic study of the interfacial zone (plastic-binder) has shown that there is poor adhesion between PP plastic particles and cement paste. From this work, it is found that recycled PP plastic waste has a great potential to be a construction material. It can be used as partial replacement of natural aggregates instead.


2020 ◽  
Vol 12 (2) ◽  
pp. 69-74
Author(s):  
Wahyu Firdaus ◽  
Yuzuar Afrizal ◽  
Agustin Gunawan

The Oil palm fiber ash has a silica content of 59.1% which make it possible as a partial replacement for cement. This research was aimed to determine the effect of oil palm fiber ash as a partial replacement of cement to compressive strength of paving block. The specimens was made with a size of 20 cm x 10 cm x 6 cm and used a ratio of 1 cement: 3 sand with the variations of the substitution of 0%, 2.5%, 5%, 7.5%, 10%, 12.5% and 15% of the volume cement. The water requirement used the initial flow test according to SNI 03-6882-2002 with each variation had the same amount of water. Specimens printed were soaked in a soaking tub at the age of 1 day for 12 days, then cut into cubes of 5 cm all side using a grinder. The testing of the compressive strength was done at the age of 14 days. Results of the average compressive strength in variations of 0%, 2.5%, 5%, 7.5%, 10%, 12.5%, 15% were respectively 15,13 MPa, 15,36 MPa, 16,02 MPa, 12,97 MPa, 12,16 MPa, 10.00 MPa and 8.01 MPa. The test results showed that the highest increase occurred on the replacement variation of 5% (5.85% from normal paving block) and the maximum decrease occurred on the replacement variation of 15% which was equal to - 47.09% from the normal paving block. The results of the research indicate that the partial replacement of cement with oil palm fiber ash above 5% of the cement volume decreased the compressive strength of paving block. Keywords : oil palm fiber ash, compressive strength, paving block.


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