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.

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 Effects of Oil Palm Shell Coarse Aggregate Species on High Strength Lightweight Concrete

2014 ◽  
Vol 2014 ◽  
pp. 1-12 ◽  
Author(s):  
Ming Kun Yew ◽  
Hilmi Bin Mahmud ◽  
Bee Chin Ang ◽  
Ming Chian Yew
Keyword(s):  
Compressive Strength ◽  
Oil Palm ◽  
Lightweight Concrete ◽  
Good Condition ◽  
High Strength ◽  
Pulse Velocity ◽  
Dry Density ◽  
Coarse Aggregates ◽  
Palm Shell ◽  
Oil Palm Shell

The objective of this study was to investigate the effects of different species of oil palm shell (OPS) coarse aggregates on the properties of high strength lightweight concrete (HSLWC). Original and crushed OPS coarse aggregates of different species and age categories were investigated in this study. The research focused on two OPS species (duraandtenera), in which the coarse aggregates were taken from oil palm trees of the following age categories (3–5, 6–9, and 10–15 years old). The results showed that the workability and dry density of the oil palm shell concrete (OPSC) increase with an increase in age category of OPS species. The compressive strength of specimen CD3 increases significantly compared to specimen CT3 by 21.8%. The maximum achievable 28-day and 90-day compressive strength is 54 and 56 MPa, respectively, which is within the range for 10–15-year-old crushedduraOPS. The water absorption was determined to be within the range for good concrete for the different species of OPSC. In addition, the ultrasonic pulse velocity (UPV) results showed that the OPS HSLWC attain good condition at the age of 3 days.

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 A Feasibility Study on partially substituted Coarse Aggregate with Oil Palm Shell in Coconut Fiber Reinforced Concrete

2018 ◽  
Vol 7 (3.36) ◽  
pp. 62
Author(s):  
Siaw Wee Ong ◽  
Teck Leong Lau ◽  
Tuck Wai Yeong ◽  
Mohammed Parvez Anwar ◽  
Wael Elleithy
Keyword(s):  
Reinforced Concrete ◽  
Oil Palm ◽  
Coarse Aggregate ◽  
Volume Fraction ◽  
Waste Products ◽  
Coarse Aggregates ◽  
Palm Shell ◽  
Oil Palm Shell ◽  
Coconut Fibre ◽  
The Impact

In the search of alternative materials for the replacement of conventional coarse aggregate, the feasibility of utilizing agricultural waste products was looked into in the effort of producing a more environmentally friendly and less dense concrete. Mechanical properties of partially substituted coarse aggregates using oil palm shell (OPS) in a concrete composite reinforced with a low volume fraction of coconut fibre (CF) have been studied for its feasibility as an alternative solution to the problem. Analysis on the impact of compressive strength, flexural strength, density and Young’s modulus have been conducted on hardened coconut fibre reinforced concrete (CFRC) at 15% and 25% substitution by volume of conventional coarse aggregates with OPS. The properties of the composite concrete were evaluated with reference to the control sample, CFRC reinforced with 0.2% fibre volume fraction. The results have shown that it is feasible to produce a sustainable grade 30 concrete of lower density with CFRC at 25% level of OPS substitution.  

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 Assessing the Strength of Lightweight Concrete using Oil Palm Shells (OPS) as Coarse Aggregates

2020 ◽  
Vol 1 (3) ◽  
pp. 26-31
Author(s):  
Adamtey Simon Asinor ◽  
Ofosu Samuel Anim
Keyword(s):  
Oil Palm ◽  
Building Materials ◽  
Coarse Aggregate ◽  
Lightweight Concrete ◽  
Residential Buildings ◽  
Construction Materials ◽  
Coarse Aggregates ◽  
Oil Palm Shell ◽  
Concrete Maturity ◽  
Cost Of Construction

The usage of concrete spans the length of civilization and in modern day construction environment, concrete remains one of its major materials. As a result of high cost of construction and construction materials especially in Ghana and other developing countries in West Africa, different efforts have been made to find alternative local building materials to substitute wholly or partly some of the constituents of concrete. This paper looks at the potential of oil palm shells (OPS) as coarse aggregate in lightweight concrete by mainly assessing the compressive strength of OPS concrete and also establish the best mix ratio for OPS concrete. The coarse aggregate of the mix ratios 1:2:4 and 1:3:6 were replaced with OPS and their densities and compressive strengths determined on the 7th, 21st and 28th days of the concrete maturity. It was found that OPS can be used to replace coarse aggregate up to 75% in 1:2:4 mix ratio and up to 50% in 1:3:6 mix ratio. It is therefore recommended that the best mix ratios are 1:2:2:2 and 1:3:3:3. Single storey residential buildings, offices and footbridges are some of the recommended structures that OPS concrete could be suitable for. Keywords: Lightweight concrete; oil palm shell aggregates; density; concrete cubes; concrete maturity

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.

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