scholarly journals Flexural behaviour of reinforced lightweight concrete floor panel using hot water pre-treated oil palm shell as coarse aggregate

2019 ◽  
Author(s):  
Ayudia Mutiara Fani ◽  
Nuraziz Handika ◽  
Elly Tjahjono ◽  
Essy Arijoeni
Keyword(s):  
Oil Palm ◽  
Coarse Aggregate ◽  
Lightweight Concrete ◽  
Hot Water ◽  
Flexural Behaviour ◽  
Concrete Floor ◽  
Palm Shell ◽  
Oil Palm Shell ◽  
Floor Panel

scholarly journals Flexural behaviour of reinforced lightweight concrete beam using hot water pre-treated oil palm shell coarse aggregate

2019 ◽  
Vol 276 ◽  
pp. 01032 ◽  
Author(s):  
Farah Dini Sofyani ◽  
Nuraziz Handika ◽  
Elly Tjahjono ◽  
Essy Arijoeni
Keyword(s):  
Oil Palm ◽  
Concrete Beam ◽  
Mechanical Response ◽  
Coarse Aggregate ◽  
Lightweight Concrete ◽  
Hot Water ◽  
Palm Shell ◽  
Oil Palm Shell ◽  
Two Samples ◽  
Increasing Demand

Along with the increasing demand for habitation in Indonesia, the need for concrete as the most favourable housing material is escalating. Oil Palm Shell (OPS) as coarse aggregate material is a possible alternatives material in concrete mix proportions. This possible choice of material not only can fulfil the requirements of the materials, but is also capable of reducing the problem of OPS waste in Indonesia. As OPS concrete compressive strength in previous studies in laboratory is in the range of 20-23 MPa, studies on larger elements of structure become interesting. This research presents flexure behaviour of lightweight concrete beams using OPS replacing natural coarse aggregates under four-point loading application. OPS is firstly pre-treated using hot water at 50°C based on previous research. In this study, a series of tests was conducted on two samples of identical beam with dimension of 15×25×300 cm. This size represents the typical dimension of beam used in two-storey houses in Indonesia. Mechanical response due to bending that occurs in OPS lightweight concrete beam is presented. Observation on the beam is emphasised on the pure bending area.

Quality improvement of oil palm shell (OPS) as coarse aggregate in lightweight concrete

2006 ◽  
Vol 41 (9) ◽  
pp. 1239-1242 ◽  
Author(s):  
M.A. Mannan ◽  
J. Alexander ◽  
C. Ganapathy ◽  
D.C.L. Teo
Keyword(s):  
Quality Improvement ◽  
Oil Palm ◽  
Coarse Aggregate ◽  
Lightweight Concrete ◽  
Palm Shell ◽  
Oil Palm Shell

scholarly journals Optimum Oil Palm Shell Content as Coarse Aggregate in Concrete Based on Mechanical and Durability Properties

2018 ◽  
Vol 2018 ◽  
pp. 1-14 ◽  
Author(s):  
Mehdi Maghfouri ◽  
Payam Shafigh ◽  
Muhammad Aslam
Keyword(s):  
Oil Palm ◽  
Coarse Aggregate ◽  
Lightweight Concrete ◽  
Drying Shrinkage ◽  
Lightweight Aggregate ◽  
High Strength ◽  
Normal Weight ◽  
Concrete Mixture ◽  
Palm Shell ◽  
Oil Palm Shell

Oil palm shell (OPS) is a biosolid waste in palm oil industry in the tropical countries which could be used as aggregate in concrete mixture. Since 1984, OPS has been experimented as natural lightweight aggregate in research studies to produce lightweight concrete (LWC). Medium and high-strength LWCs using OPS as coarse aggregate were successfully produced. However, higher drying shrinkage and lower mechanical properties for concretes containing higher volume of OPS are reported in previous studies. Therefore, OPS is not fit to be used as full coarse aggregate in concrete mixture and therefore, there should be an optimum OPS content in concrete. In this study, in a normal-weight concrete, normal coarse aggregate was replaced with OPS from zero to 100% with an interval of 20%. Tests such as slump, density, compressive strength in different curing conditions, splitting tensile strength, initial and final water absorptions, and drying shrinkage of cured and uncured specimens were conducted to find out optimum OPS content in concrete. From the test results, it could be summarized that OPS content should not exceed 60% of total volume of coarse aggregate.

scholarly journals Structural Behavior of Nanocoated Oil Palm Shell as Coarse Aggregate in Lightweight Concrete

2021 ◽  
Vol 2021 ◽  
pp. 1-7
Author(s):  
V. Swamy Nadh ◽  
Chunchubalarama Krishna ◽  
L. Natrayan ◽  
KoppulaMidhun Kumar ◽  
K. J. N. Sai Nitesh ◽  
...  
Keyword(s):  
Oil Palm ◽  
Coarse Aggregate ◽  
Lightweight Concrete ◽  
Structural Behavior ◽  
Coarse Aggregates ◽  
Palm Shell ◽  
Characteristic Strength ◽  
Oil Palm Shell

Oil palm shells (OPS) are mechanical waste that is utilized as coarse aggregates in lightweight concrete. These OPS have shape and strength like conventional aggregates yet the substantial made with these OPS invigorates a limit of 18 MPa. The characteristic strength which must be utilized in structures is seen to be around 25 MPa to 30 MPa. Considering the strength as one of the boundaries for design to be sturdy, the OPS are surface-covered with nanosilane compound. This nanosilane covering goes about as infill on the outside of the aggregates and holds the concrete paste as traditional cement. Operations are permeable in nature; their inner construction has permeable design which makes the aggregates frail. Nanosilane coatings go about as holding between the concrete stage and aggregate stage and hold the substantial solid. In the present examination, mechanical and underlying conduct of nanocovered oil palm shell lightweight concrete is contrasted with that of regular cement. Nanocovered oil palm shell lightweight substantial shows comparative strength as customary cement and decrease in nonsustainable wellspring of energy in oil palm shell lightweight concrete. Supplanting of customary cement with oil palm shell concrete addresses the modern waste which can be utilized for making concrete solid and solid. Morphology and material portrayal of oil palm shell and ordinary aggregates are investigated.

The Study of Oil Palm Shell (OPS) Lightweight Concrete Using Superplasticizer, Silica Fume, and Fly Ash

2017 ◽  
Vol 902 ◽  
pp. 65-73 ◽  
Author(s):  
Elly Tjahjono ◽  
Ayudia M. Fani ◽  
Dodorus D. Dodi ◽  
Erinda P. Purnamasari ◽  
Feny A. Silaban ◽  
...  
Keyword(s):  
Compressive Strength ◽  
Fly Ash ◽  
Flexural Strength ◽  
Oil Palm ◽  
Coarse Aggregate ◽  
Lightweight Concrete ◽  
Crude Palm Oil ◽  
Concrete Technology ◽  
Palm Shell ◽  
Oil Palm Shell

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.

scholarly journals Structural Lightweight Concrete Production by Using Oil Palm Shell

2014 ◽  
Vol 2014 ◽  
pp. 1-6 ◽  
Author(s):  
Habibur Rahman Sobuz ◽  
Noor Md. Sadiqul Hasan ◽  
Nafisa Tamanna ◽  
Md. Saiful Islam
Keyword(s):  
Oil Palm ◽  
Building Materials ◽  
Coarse Aggregate ◽  
Lightweight Concrete ◽  
Modulus Of Rupture ◽  
Tropical Region ◽  
River Sand ◽  
Palm Shell ◽  
Oil Palm Shell ◽  
Concrete Production

Conventional building materials are widely used in a developing country like Malaysia. This type of material is costly. Oil palm shell (OPS) is a type of farming solid waste in the tropical region. This paper aims to investigate strength characteristics and cost analysis of concrete produced using the gradation of OPS 0–50% on conventional coarse aggregate with the mix proportions 1 : 1.65 : 2.45, 1 : 2.5 : 3.3, and 1 : 3.3 : 4.2 by the weight of ordinary Portland cement, river sand, crushed stone, and OPS as a substitution for coarse aggregate. The corresponding w/c ratios were used: 0.45, 0.6, and 0.75, respectively, for the defined mix proportions. Test results indicate that compressive strength of concrete decreased as the percentage of the OPS increased in each mix ratio. Other properties of OPS concrete, namely, modulus of rupture, modulus of elasticity, splitting tensile strength, and density, were also determined and compared to the corresponding properties of conventional concrete. Economic analysis also indicates possible cost reduction of up to 15% due to the use of OPS as coarse aggregate. Finally, it is concluded that the use of OPS has great potential in the production of structural lightweight concrete.

scholarly journals A New Mixing Method for Lightweight Concrete with Oil Palm Shell as Coarse Aggregate

2018 ◽  
Vol 65 ◽  
pp. 02012
Author(s):  
Leong Tatt Loh ◽  
Ming Kun Yew ◽  
Ming Chian Yew
Keyword(s):  
Tensile Strength ◽  
Compressive Strength ◽  
Oil Palm ◽  
Coarse Aggregate ◽  
Lightweight Concrete ◽  
Splitting Tensile Strength ◽  
Palm Shell ◽  
Oil Palm Shell ◽  
New Findings ◽  
Mixing Method

Oil Palm Shell (OPS) is the solid waste product from the palm oil sector of the agricultural industry. The substitution of coarse aggregate in concrete with OPS to produce lightweight concrete (LWC) had been researched since two decades ago. The author has discovered fluctuation on the performance of OPSLWC. One of the factors is the workability. As an initiative to enhance the performance of OPSLWC, the author proposes a new mixing method (NMM) modified from the mix design of self-compacting concrete (SCC). The effects of the NMM on the workability, uniformity, compressive strength and splitting tensile strength are investigated. The workability of the NMM is 25.5% higher than the conventional method (CM). The compressive strength shows an improvement of 5.76%; while the splitting tensile strength is increased by 22.35%. The new findings of this research have shown a positive impact on the concrete industry.

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