PANGARIBUAN, NATANAEL KEMULIANTA (2025) PEMANFAATAN LIMBAH GRANIT SEBAGAI SUBSTITUSI ANGREGAT KASAR DAN ABU BATU SEBAGAI SUBSTITUSI AGREGAT HALUS TERHADAP KUAT TEKAN DAN KUAT LENTUR BETON DENGAN PENAMBAHAN SUPERPLASTICIZER. S1 thesis, Universitas Mercu Buana Jakarta.
|
Text (HAL COVER)
01 COVER.pdf Download (506kB) | Preview |
|
![[img]](https://repository.mercubuana.ac.id/style/images/fileicons/text.png) |
Text (BAB I)
02 BAB I.pdf Restricted to Registered users only Download (200kB) |
|
|
Text (BAB II)
03 BAB II.pdf Restricted to Registered users only Download (724kB) |
|
|
Text (BAB III)
04 BAB III.pdf Restricted to Registered users only Download (309kB) |
|
|
Text (BAB IV)
05 BAB IV.pdf Restricted to Registered users only Download (888kB) |
|
|
Text (BAB V)
06 BAB V.pdf Restricted to Registered users only Download (101kB) |
|
|
Text (DAFTAR PUSTAKA)
07 DAFTAR PUSTAKA.pdf Restricted to Registered users only Download (100kB) |
|
|
Text (LAMPIRAN)
08. LAMPIRAN.pdf Restricted to Registered users only Download (1MB) |
Abstract
Concrete is a mixture consisting of a mixture of cement, sand, gravel, and water. To obtain good quality in the process, additional materials (admixtures or additives) are added. Therefore, in this study, an experimental method will be carried out using quarry dust waste (LQD) as a substitute for fine aggregate and granite waste (LG) as a substitute for coarse aggregate and the addition of GROLEN HP7R+ Superplasticizer Admixture which aims to determine its effect on concrete compressive strength, flexural strength, slump value, concrete water absorption capacity, and concrete specific gravity. There are 5 (five) types of trial mixes carried out, namely normal concrete, LG 8% + 40% LQD + 0.7% Admx, 10% LG, + 40% LQD + 0.7% Admx, 12% LG + 40% LQD + 0.7% Admx, 14% LG + 40% LQD + 0.7% Admx. The design quality is f’c 30 MPa with a cylindrical test object with a diameter of 15 cm and a height of 30 cm and a beam test object with dimensions of 15 cm wide and 60 cm long. The highest compressive strength results at the age of 28 days were in the concrete variation of 14% LG + 40% LQD + 0.7% Admx at 48.61 MPa, and the lowest at 10% LG, + 40% LQD + 0.7% Admx at 31.80 MPa. The lowest slump value was at 14% LG + 40% LQD + 0.7% Admx, at 12 cm, and the highest at 10% LG + 40 LQD + 0.7 Admx at 14 cm. The highest concrete water absorption result was at 8% LG + 40 LQD + 0.7 Admx at 0.27%, and the lowest at 14% LG + 40% LQD + 0.7 Admx at 0.213%. The highest concrete density results were at 14% LG + 40 LQD + 0.7 Admx of 2396 Kg, and the lowest at 8% LG + 40% LQD + 0.7 Admx of 2367 Kg. From the results of the study, it can be concluded that with the substitution of 40% LQD and the higher percentage of LG substitution to coarse aggregate and the addition of Superplasticizer Admixture, the higher the concrete compressive strength, the lower the slump value, and the lower the water absorption capacity of the concrete. Keywords: Quarry dust waste, granite waste, superplasticizer admixture, concrete compressive strength, concrete flexural strength Beton merupakan suatu campuran yang terdiri dari campuran semen, pasir, kerikil, dan air. Untuk mendapatkan mutu yang baik dalam pengerjaannya ditambahkan bahan tambahan (admixture atau additive). Oleh karenanya dalam penelitian ini akan dilakukan metode eksperimental penggunaan limbah quarry dust (LQD) sebagai subtitusi agregat halus dan limbah granit (LG) sebagai substitusi agregat kasar dan penambahan Admixture Superplasticizer GROLEN HP7R+ yang bertujuan untuk mengetahui pengaruhnya pada kuat tekan beton, kuat lentur, nilai slump, daya serap air beton, dan berat jenis beton . Ada 5 (lima) macam trial mix yang dilakukan, yaitu beton normal, LG 8% + 40% LQD +0,7% Admx, 10% LG, + 40% LQD + 0,7% Admx, 12% LG + 40% LQD + 0,7% Admx, 14% LG + 40% LQD + 0,7% Admx. Mutu rencana adalah f’c 30 MPa dengan benda uji silinder berdiameter 15 cm dan tinggi 30 cm dan benda uji balok berdimensi lebar 15 cm dan panjang 60 cm. Hasil kuat tekan pada umur 28 hari tertinggi pada beton variasi 14% LG + 40% LQD + 0,7% Admx sebesar 48,61 MPa, dan terendah pada 10% LG, + 40% LQD + 0,7% Admx sebesar 31,80 MPa. Hasil nilai slump terendah pada 14% LG + 40% LQD + 0,7% Admx, sebesar 12 cm, dan tertinggi pada 10% LG + 40 LQD + 0,7 Admx sebesar 14 cm. Hasil daya serap air beton tertinggi pada 8% LG + 40 LQD + 0,7 Admx sebesar 0,27%, dan terendah pada 14% LG + 40% LQD + 0,7 Admx sebesar 0,213%. Hasil berat jenis beton tertinggi pada 14% LG + 40 LQD + 0,7 Admx sebesar 2396 Kg, dan terendah pada 8% LG + 40% LQD + 0,7 Admx sebesar 2367 Kg.Dari hasil penelitian, dapat disimpulkan bahwa dengan substitusi 40% LQD dan semakin tinggi persentase substitusi LG terhadap agregat kasar dan penambahan Admixture Superplasticizer, maka kuat tekan beton semakin Tinggi, nilai slump semakin rendah, dan daya serap air beton semakin rendah. Kata Kunci: Limbah quarry dust, limbah granit, admixture superplasticizer, kuat tekan beton, kuat lentur beton
Actions (login required)
 |
View Item |
