PALM KERNEL SHELL AS AN ALTERNATIVE AGGREGATE ON HIGH PERFORMANCE CONCRETE CONCRETE

2019 ◽  
Vol 1 (02) ◽  
pp. 68-75 ◽  
Author(s):  
Heny Purwanti ◽  
Titik Penta Artiningsih

Coarse aggregates commonly used in concrete are coarse natural aggregates, which are broken stones or gravel. Continuous rock exploration can cause environmental damage or even more severe ecosystem damage. Therefore it is necessary to substitute an alternative aggregate. Indonesia has the second largest oil palm plantation (Elaeis guineensis Jacq) in the world after Malaysia. Plantations are renewable resources, so palm oil is also potential to be used as an alternative to diesel fuel. Palm kernel shells are palm oil industry wastes which are generally underutilized. Palm kernel shells can be used as an alternative to coarse aggregate, because oil palm shells have the advantage of being hard, tough and good durability due to the high content of lignin and silica dioxide (SiO2), such as hard wood, but low cellulose content so it is not easy rot. The strength of the palm oil shell is quite good. In addition, the aggregate gradation also fulfills the requirements without a breakdown process, which has a thickness of 2-4 mm and a maximum width of 15 mm. The volume of oil palm shells is + 600 kg/m3, so it will produce significant light weight concrete. The concrete studied was concrete with a coarse aggregate of tenera palm kernel shells, with fine aggregates of natural sand, and a Portland Composite Cement (PCC), but the PCC content was reduced and replaced by FA which varied from 0%, 5%, 10 %, 15%, 20 and 25%. Concrete also added superplasticizer (SP). SP is used to reduce water use, because the shell absorbs water. SP levels also vary, namely 0%, 1%, and 1.2%. The weight of the volume of concrete with various levels of fly ash and SP is 1700-1800 kg/m3, so it can be classified as lightweight concrete. Increased FA levels will increase compressive strength, but only up to 10%, after which the strength decreases. Compressive strength of specimens with SP 0% and FA 10% is 17.92 MPa, for SP levels of 1% and FA 10% is 22.15 MPa, while for SP levels of 1.2% and FA 10% is 19.35 MPa . So that it can be concluded that the palm shell as bio-material (renewable resources) can be used as a substitute for natural coarse aggregates. The optimum fly ash level is 10%, and to reduce water use SP 1%. The use of oil palm shells as a substitute for gravel means reducing the waste of the palm oil industry, while reducing rock exposures. In addition, in Indonesia there are many areas where there are no rock sources while oil palm plantations are quite extensive.

Author(s):  
A.O Adeyemi ◽  
M.A Anifowose ◽  
I.O Amototo ◽  
S.A Adebara ◽  
M.Y Olawuyi

This study examined the effect of varying water cement ratio on the compressive strength of concrete produced using palm kernel shell (PKS) as coarse aggregate at different replacement levels. The replacement levels of coarse aggregate with palm kernel shells (PKS) were 0%, 25%, 50%, and 100% respectively. PKS concrete cubes (144 specimens) of sizes 150mm x 150mm x 150mm were cast and cured in water for 7, 14, 21 and 28 days respectively. A mix ratio of 1:2:4 was adopted with water-cement ratio of 0.45, 0.5, and 0.6 respectively while the batching was done by weight. Slump test was conducted on fresh concrete while compressive strength test was carried out on the hardened concrete cubes using a compression testing machine of 2000kN capacity. The result of tests on fresh concrete shows that the slump height of 0.45 water cement ratio (w/c) increases with an increase in PKS%. This trend was similar to 0.50 and 0.60 w/c. However, the compressive strength of concrete cube decreases with an increase in w/c (from 0.45 to 0.60) but increases with respect to curing age and also decreases with increase in PKS%. Concrete with 0.45 water-cement ratio possess the highest compressive strength. It was observed that PKS is not a good substitute for coarse aggregate in mix ratio 1:2:4 for concrete productions. Hence, the study suggest the use of chemical admixture such as superplasticizer or calcium chloride in order to improve the strength of palm kernel shells-concrete.


2018 ◽  
Vol 34 ◽  
pp. 01008
Author(s):  
Nor Hasanah Abdul Shukor Lim ◽  
Mostafa Samadi ◽  
Abdul Rahman Mohd. Sam ◽  
Nur Hafizah Abd Khalid ◽  
Noor Nabilah Sarbini ◽  
...  

This paper studies the drying shrinkage of mortar incorporating oil palm biomass waste including Palm Oil Fuel Ash, Oil Palm Kernel Shell and Oil Palm Fibre. Nano size of palm oil fuel ash was used up to 80 % as cement replacement by weight. The ash has been treated to improve the physical and chemical properties of mortar. The mass ratio of sand to blended ashes was 3:1. The test was carried out using 25 × 25 × 160 mm prism for drying shrinkage tests and 70 × 70 ×70 mm for compressive strength test. The results show that the shrinkage value of biomass mortar is reduced by 31% compared with OPC mortar thus, showing better performance in restraining deformation of the mortar while the compressive strength increased by 24% compared with OPC mortar at later age. The study gives a better understanding of how the biomass waste affect on mortar compressive strength and drying shrinkage behaviour. Overall, the oil palm biomass waste can be used to produce a better performance mortar at later age in terms of compressive strength and drying shrinkage.


2021 ◽  
Vol 4 (1) ◽  
pp. 26-33
Author(s):  
Sani Shehu ◽  
Mohd Afandi Salleh ◽  
Edy Fitriawan Syahadat

The oil palm plantation can be found throughout West Africa and palm oil has contributed significantly towards the Nigerian exports. However, the palm oil industry in Nigeria was declining to 36.4% in 1969 and 13.2% in 1974 in spite of being the largest global exporting country at the beginning of 20th Century. Since then, domestic consumption has increased, slow growth in palm oil production and low output was delivered. The equipment of production is considered obsolete, the plantations are aging, the technology access is very little, and financing is insufficient. This indicated a threat and inefficiency of Nigerian palm oil industries to cater for the needs of people regardless of the increase in oil demand locally as the  palm kernel oil is becoming important food and raw materials. Due to this problem, Nigeria remained to receive palm oil from Malaysia even though the seedlings was originated from Nigeria. Other large importers include from Benin, Ghana, Ivory Coast and Togo. This issue has caused Palm oil production in Nigeria to be more expensive and not competitive if compared to other countries like Malaysia and Indonesia. Hence, the objective of this paper explores the challenges facing palm oil industry in Nigeria using qualitative data through document and thematic analysis. The semi-structured interview was analysed by utilizing Atlas ti 8 software. The findings of the paper shows that there are challenges facing palm oil industry in Nigeria such as lack of good planting materials, poor funding, improper milling and lack of technology. From this, it is confirmed that there are numerous challenges facing palm oil industry in Nigeria which requires aids from the government from allocation of huge amount of its budget to agriculture and establish better policies for the palm oil industry that will attract more public and private investment. Keywords: Oil Palm, Palm Oil, Palm Oil industry in Nigeria, Challenges  


Author(s):  
O.J Oladiran ◽  
D.R Simeon ◽  
O.A Olatunde

Excessive usage of materials is causing fast depletion of natural stone deposit. This study therefore investigates the performance of palm kernel shells (PKS) and periwinkle shells (PS) as alternatives coarse aggregates in concrete. Forty cubes and 40 cylinders each were produced with PKS and PS as replacement materials for granite. Series of tests were conducted to determine their performances. The results showed that, compressive and tensile strengths decrease as PKS and PS content increases, which allow specific area to increase, thus requiring more cement paste to bond effectively with the shells. The result also revealed that for all curing ages, palm kernel shell concrete (PKSC) have lower compressive strength and tensile strength than periwinkle shell concrete (PSC). The compressive strength and tensile strength of the 28-day PKSC with 100% replacement were 4.33 N/mm2 and 3.68 N/mm2 respectively; that of PSC at 100% replacement were 5.89 N/mm2 and 4.95 N/mm2 respectively; and granite concrete without any replacement were 25.11 N/mm2 and 11.74 N/mm2 respectively. It is concluded that both PKSC and PSC satisfied the compressive strength and tensile strength requirement of light weight concrete, although PS has better gradation and bonding to cement than PKS. This implies that PS is best suited as replacement for granite in lightweight concrete than PKS. It is recommended that the mix-ratio should be altered to get higher values of compressive strength; and both PKS and PS should be used for lightweight concretes.


2017 ◽  
Vol 902 ◽  
pp. 65-73 ◽  
Author(s):  
Elly Tjahjono ◽  
Ayudia M. Fani ◽  
Dodorus D. Dodi ◽  
Erinda P. Purnamasari ◽  
Feny A. Silaban ◽  
...  

The concrete technology has been growing significantly since years ago especially in Indonesia’s construction. Therefore, Indonesia needs new innovation of concrete technology to solve the problem for the availability of concrete material. Indonesia is known as the largest producer of crude palm oil (CPO) in the world. Oil palm shell (OPS) is one of the solid wastes produced in crude palm oil industry that can be used as concrete materials. This paper presents the experimental results of a research project to produce structural lightweight concrete using oil palm shell (OPS), as a coarse aggregate. This experimental was investigating the effects of adding silica fume, fly ash, and superplasticizer for the compressive strength and flexural strength of the OPS lightweight concrete. It was found that OPS lightweight concrete has compressive strength up to 23.90 MPa in 28-days and flexural strength up to 2.54 MPa in 28-days. This experimental concluded that OPS lightweight concrete has a good potential as a lightweight coarse aggregate and low-cost housing construction in Indonesia.


2016 ◽  
Vol 866 ◽  
pp. 83-87
Author(s):  
Gunalaan Vasudevan

Palm oil industry in Malaysia has a phenomenon grow in recent years and this caused lots of oil palm waste generated while the boiler ash clinker (BAC) is one of the waste that left over after burning of the oil palm fibers, empty fruit bunch etc. in a boiler which had mean how the boiler ask clinker will come with a huge amount. In this research, the boiler ash clinker will be used in concrete mixing by partially replace the coarse aggregate that used in conventional concrete. The reason is that the coarse aggregate that use in a concrete mix design is normally carry a high percentage compare to other materials. The percentage of substitution is 5%, 10% and 15% of boiler ash clinker in concrete. There are three (3) main objectives to be achieve in this research which are: to determine the physical properties of boiler ash clinkers on concrete, to determine the effect of boiler ash clinkers on concrete and to identify the applicability of concrete from the gradation of substitution of boiler ash clinkers as coarse aggregates in a concrete mix. Next, the compressive strength and workability for the different percentage of substitution of the boiler ash clinker in the concrete mixture will be identify and analyze in this research. At the end of this research, the conclusion will be made based on the three (3) main objectives and recommendation is given.


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.


Konversi ◽  
2014 ◽  
Vol 3 (2) ◽  
pp. 20
Author(s):  
Andi Haryanti ◽  
Norsamsi Norsamsi ◽  
Putri Suci Fanny Sholiha ◽  
Novy Pralisa Putri

Abstrak- Setiap tahunnya produksi kelapa sawit makin meningkat, sehingga akan terjadi peningkatan juga pada limbah kelapa sawit. Limbah kelapa sawit adalah sisa-sisa hasil tanaman kelapa sawit yang tidak termasuk dalam produk utama atau merupakan hasil ikutan dari proses pengolahan kelapa sawit. Limbah padat kelapa sawit dapat berupa tandan kosong, cangkang dan sabut, dimana pada 1 ton kelapa sawit menghasilkan limbah berupa tandan kosong kelapa sawit sebanyak 23% atau 230 kg, limbah cangkang sebanyak 6,5% atau 65 kg, sabut 13% atau 130 kg. Umumnya limbah padat industri kelapa sawit mengandung bahan organik yang tinggi sehingga jika penanganan limbah secara tidak tepat akan mencemari lingkungan. Pada tandan kosong kelapa sawit (TKKS) dapat dimanfaatkan sebagai PLT biomassa, pupuk dan bioetanol. Untuk cangkang kelapa sawit dapat dimanfaatkan sebagai karbon/arang aktif, pembuatan pupuk cair kalium sulfat, pengawet alami tahu, bahan bakar (biomassa), briket. Untuk sabut kelapa sawit dapat dimanfaatkan sebagai bahan penguat sifat mekanik komposit, fiber glass, pengolah limbah cair, pembuatan pulp, media tanaman alternatif, alternatif pengganti solar dan batubara sebagai bahan bakar pembangkit listrik. Masih banyak yang bisa di lakukan untuk pemanfaatan limbah padat kelapa sawit dengan dilakukan penelitian. Kata Kunci: limbah padat kelapa sawit, TKKS, cangkang kelapa sawit, sabut kelapa sawit Abstract- Each year, palm oil production increased, so that there will be an increase also in palm oil waste. Waste of palm oil crops are not included in the main product or a by-product of the processing of palm oil. Solid waste can be either oil palm empty fruit bunches, shells and fiber (coir), which on 1 ton of palm oil generates waste in the form of empty fruit bunches of oil pam as much as 23% or 230 kg, the waste shell as much as 6.5% or 65 kg, coir (fiber) 13% or 130 kg. Generally palm oil industrial solid waste contain organic matter so that if the improper handling of waste will pollute the environment. In the oil palm empty fruit bunches (EFB) PLT can be used as biomass, manure and bioethanol. For palm kernel shells can be used as a carbon/charcoal, liquid potassium sulphate fertilizer production, and natural preservatives. To coir (fiber) palm oil can be used as a reinforcing material for the mechanical properties of the composite, fiber glass, liquid waste processing, manufacture of pulp, media alternative crops, alternative to diesel and coal as fuel for electricity generation. There is still much that can be done for solid waste utilization of palm oil by doing a research.Keywords: solid waste of palm oil, EFB, palm kernel shells, fiber of palm oil


Author(s):  
Tria Mutiari Meilan ◽  
Sapta Raharja ◽  
Muhammad Syamsun

Palm oil (Elaeis guineensis Jacq.) is one of the main commodities in Indonesia . The production of Crude Palm Oil (CPO) and Palm Kernel Oil (PKO) in Indonesia has increased significantly in recent years. The palm oil industry is often accused of causing environmental degradation because some of the cultivation and processing practices are suspected to cause greenhouse gas emissions. The Government has implemented the obligations of certification of Indonesia Sustainable Palm Oil (ISPO) in accordance with the Government of Indonesia's commitment to improve the sustainability of the Indonesian palm oil industry. The objectives of this research are (1) To identify and analyze the impact of risk on environment, social and governance (ESG Risk) at each stage of oil palm cultivation and processing. (2) To identify and analyze the level of readiness to fulfill ISPO requirements (3). Determine the recommendations of risk control in the cultivation and processing of oil palm. The method used in this research is descriptive and analytic method which is a case study. Results of analysis at PT. London Sumatra (Lonsum) especially at Arta Kencana Estate, Lahat, South Sumatera which was not ISPO Certified yet, shows that there are 16 ESG risks and the highest is related to the preparation stage of the land area.  Risk control recommended is Risk Avoidance. Arta Kencana Estate in general have fulfilled almost all of the requirements for compliance with required principles with an average index of 8.86.  Arta Kencana Estate are need to complete and perform administrative improvements and requirements documents to be able to meet the gap. In this study found that the ESG risk on palm oil can be mitigated through the fulfillment of ISPO principles.


2021 ◽  
Vol 4 (2) ◽  
pp. 5-12
Author(s):  
Joshua Chukwuemeka Emeghai ◽  
Ogheneale Umukoro Orie

The paper investigated the effect of using Palm Kernel Shell (PKS) as a partial substitute for granite as coarse aggregate in concrete production, aimed at developing an alternative form of construction material without compromising structural integrity. Randomly sourced dried and undried palm kernel shells, were used to replace coarse aggregate by weight to a standard mix ratio of 1:2:4:0.54. The dried shells were obtained by heating in an improvised oven at 800C. The physical and geotechnical properties of the aggregates were determined. Results showed that the aggregate impact value of granite and PKS used were 0.228 and 0.104 respectively. The substitution of the coarse aggregate was varied from 0% to 20%. A slump test was used to determine the workability of the fresh concrete. A total of 108 concrete cubes measuring 100mm×100mm×100mm were investigated at 7days, 14days, 21days and 28days. The control mix gave compressive strengths of 25.67 N/mm2, 29.83 N/mm2, 31.33 N/mm2 and 35.67 N/mm2 at 7, 14, 21 and 28days respectively. The compressive strengths of undried PKS cement blended concrete and dried PKS substitute at 5% were 23.17 N/mm2, 27.00 N/mm2, 28.00 N/mm2, 26.00 N/mm2 and 17.50 N/mm2, 16.17 N/mm2, 18.16 N/mm2, 20.00 N/mm2 respectively for 7, 14, 21 and 28days curing periods. The highest compressive strength of 28.00 N/mm2 decreased by 21.50% from the control of 35.67 N/mm2. This compressive strength is adequate for light weight construction works as specified by BS EN 206:2013.


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