Article Per Year (5 Year)
p-Index From 2020 - 2025
0.23
P-Index
This Author published in this journals
All Journal FORUM BANGUNAN INTEK: Jurnal Penelitian
Nur Aisyah Jalali, Nur Aisyah
Politeknik Negeri Ujung Pandang
Computer Science & IT Engineering Other

Published : 3 Documents Claim Missing Document
Claim Missing Document
Check
Articles

Found 3 Documents
Search

 1 
KUAT TEKAN DAN KUAT TARIK-BELAH BETON AKIBAT PENGGUNAAN AGREGAT KASAR PELLET PLASTIK POLYPROPYLENE TEREPHTALATE Jalali, Nur Aisyah; Erdiansa, Andi
FORUM BANGUNAN Vol 11, No 1 (2013)
Publisher : Universitas Negeri Makassar

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

Plastics which are classified as inorganic wastes take a long time to decompose. The amount of plastic that is continuously increasing requires serious treatment to avoid its environment problem. It is therefore important to minimize the discharge of waste with reusing and recycling, so that the disposed waste will be fewer. This research aims to find the effect of plastic pellets as a coarse aggregate to the weight-volume, compressive strength, and split tensile strength of concrete compared with normal concrete (crushed stone as the coarse aggregate), and to determine classification based on the weight-volume and compressive strength of concrete. The results of the research showed that the higher levels of plastic pellets in concrete, the lower the weight-volume, compressive strength, and split tensile strength of concrete, where a decline to normal concrete. According to SNI 03-3449-2002, concrete with 60% and 80% pellets levels are not classified as lightweight concrete, whereas concrete with 100% pellets levels are classified as structural lightweight concrete because its weight-volume is less than 1850 kg/m3. The results of compressive strength test showed that concrete with 60%, 80%, and 100% pellets levels are categorized as structural lightweight concrete because its compressive strength is more than 17,3 MPa, whereas according to SNI 03-3449-2002 are categorized as structural lightweight concrete. Keywords: pellet, split tensile strength, lightweight concrete
BETON DENGAN SUBSTITUSI PELLET POLYPROPYLENE (PP) DAN PENGARUHNYA TERHADAP KUAT TARIK DAN KUAT LENTUR Jalali, Nur Aisyah
FORUM BANGUNAN Vol 11, No 2 (2013)
Publisher : Universitas Negeri Makassar

Show Abstract | Download Original | Original Source | Check in Google Scholar

Abstract

The increasing development of technology at this time, resulting in the need for facilities and infrastructure such as buildings, roads, bridges, and so is also increasing. This research aims to find the effect of plastic pellets as supplementary material or as a substitute for the coarse aggregate in weight-volume, tensile strength, and flexural strength of concrete due to the use of plastic pellets. Concrete mixture used cement, water, sand, and crushed stone, plastic pellets also replace some or all of the crushed stone. Pellet is a type of plastic waste polypropylene (PP) of bottled water containers are processed to resemble the shape of crushed stone. Concrete mix design used SNI 03-2834-2002 with a compressive strength of 20 MPa plan. Variations in the sample of concrete were levels of without pellets, pellet grade with 60%, 80%, and 100% of the volume of crushed stone. Specimens in the form of cylinders and beams were tested at 28 days. The test results of concrete with plastic pellets levels 60%, 80%, and 100% were weight-volume of concrete in a row at 1967 kg/m3, 1778 kg/m3, and 1676 kg/m3, tensile strength of concrete in a row at 1,52 MPa, 1,46 MPa, and 1,10 MPa, flexural strength of concrete in a row at 2,54 MPa, 2,61 MPa, and 2,19 MPa.
Influence of Curing Conditions on Strength Characteristics of Sea Sand Mortar Datu, Irka Tangke; Ali, Adiwijaya; Jalali, Nur Aisyah; Khairil, Khairil
INTEK: Jurnal Penelitian Vol 7 No 2 (2020): October 2020
Publisher : Politeknik Negeri Ujung Pandang

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.31963/intek.v7i2.2720

Abstract

This present paper aims to investigate strength characteristics of cement mortar using natural sea sand as fine aggregate in different curing conditions. Research was carried out with making mortar mixtures by two types of cement, Portland Composite Cement (PCC) and Pozzolana Portland Cement (PPC) with tap water as mixing water. Characteristics of fine aggregate and strength of cement mortar use river sand (RS), sea sand (SS), and washed sea sand (WS) were observed. Further, specimens of cube mortar in size of 50 mm x 50 mm x 50 mm of six mortar mixture series were casted according to Indonesian Standard. At 24 hours after cube specimens were casted, cube mortar specimens were cured in three curing conditions such as tap water curing (TC), seawater curing (SC) and air curing (AC). After curing at certain period (3-day, 7-day, 14-day, and 28-day), cube mortar samples were tested in compressive strength. Results concluded that sea sand aggregate improve characteristic of mortar in compressive strength up to 28 days in all curing conditions, and there was no significant effect of type of curing water (TC and SC) on 28-day strength performance of mortar was obtained. In addition, sea sand could potentially be utilized as an aggregate in production of mortar and/or concrete.
Co-Authors Ali, Adiwijaya Andi Erdiansa, Andi Datu, Irka Tangke Khairil Khairil