PENGARUH PENGGUNAAN ABU SEKAM PADI DAN LIMBAH ABU BATU TERHADAP KEKUATAN MORTAR GEOPOLIMER
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Institusion
Institut Teknologi Perusahaan Listrik Negara
Author
FAUZIAH, DITA RACHMA
Putri, Desi
Putri, Desi
Subject
Teknik Sipil
Datestamp
2022-09-20 07:09:02
Abstract :
A geopolymer mortar is a mortar whose composition consists of fly ash, sand and activator. This study aims to find out the strong value of press, absorption and initial setting time by replacing some fly ash and sand by using rice husk ash (ASP) and stone ash (AB). Comparison of fly ash with sand 1:3 and NaOH concentration level of 8M with ratio ratio of NaOH / Na2SiO3 of 1: 2.5. The variations used in this study are variation 1 (0% ASP and AB 0%), variation 2 (7.5% ASP and AB 0%), variation 3 (7.5% ASP and AB 20%), variation 4 (7.5% ASP and AB 40%), variation 5 (7.5% ASP and AB 60%), variety 5 (7.5% ASP and AB 60%), ). Strong value yield press age 7 consecutive days of 8.06 MPa; 8,2 MPa; 8 MPa; 6,4 MPa; 4.67 MPa and at 28 days of age of 21 MPa; 21,4 MPa; 14.53 MPa; 11,13 MPa; 10 MPa. The initial tie time in a row of 45 minutes; 75 minutes; 60 minutes; 60 minutes; 60 minutes. Consecutive absorption values of 1.57%, 1.16%, 2.33%, 2.44%; 2,49%. The optimal compressive strong value in the second variation with variable 7.5% rice husk ash and 0% stone ash is 21.4 MPa. Initial setting time is the longest on the second variation for 75 minutes. And the lowest absorption value in the second varisai is 1.57%.
A geopolymer mortar is a mortar whose composition consists of fly ash, sand and activator. This study aims to find out the strong value of press, absorption and initial setting time by replacing some fly ash and sand by using rice husk ash (ASP) and stone ash (AB). Comparison of fly ash with sand 1:3 and NaOH concentration level of 8M with ratio ratio of NaOH / Na2SiO3 of 1: 2.5. The variations used in this study are variation 1 (0% ASP and AB 0%), variation 2 (7.5% ASP and AB 0%), variation 3 (7.5% ASP and AB 20%), variation 4 (7.5% ASP and AB 40%), variation 5 (7.5% ASP and AB 60%), variety 5 (7.5% ASP and AB 60%), ). Strong value yield press age 7 consecutive days of 8.06 MPa; 8,2 MPa; 8 MPa; 6,4 MPa; 4.67 MPa and at 28 days of age of 21 MPa; 21,4 MPa; 14.53 MPa; 11,13 MPa; 10 MPa. The initial tie time in a row of 45 minutes; 75 minutes; 60 minutes; 60 minutes; 60 minutes. Consecutive absorption values of 1.57%, 1.16%, 2.33%, 2.44%; 2,49%. The optimal compressive strong value in the second variation with variable 7.5% rice husk ash and 0% stone ash is 21.4 MPa. Initial setting time is the longest on the second variation for 75 minutes. And the lowest absorption value in the second varisai is 1.57%.
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