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Pengaruh Matos terhadap Peningkatan CBR (California Bearing Ratio)dan Sifat Kedap Airpada Tanah Sekitar Rawa Pening Saputra, Erwin Harris; Deckcrealy, Lie Sanders; Suwarno, Djoko; Setiyadi, Budi
G - SMART Vol 2, No 1: Juni 2018
Publisher : G - SMART

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24167/gs.v2i1.1435

Abstract

Rawa Pening soil contains peat has low level of California Bearing Ratio (CBR) and high permeability so it is less suitable for embankment. Above the embankment functioned as a road body. This study adds cement and matos (normal) to increase soil bearing capacity. (50%), 50% G 50% Cement (C) 8%, TSRP 50% + G 50% + C 8% + Matos (M) 2%, 4% and 6%. CBR soaked, normal results obtained CBR 2.99% while the CBR requirement of 5.44%. Addition of C 8% adds CBR value to 9,25%, while addition of M 2% increase CBR value equal to 8,9%, M 4% yield CBR become 16% and M 6% get CBR equal to 16%. Low compaction, normal soil undergoes seepage after a day, compaction is undergone seepage after 3 days and standard compaction does not undergo seepage for 7 days. The most optimal result, with stabilization of C 8% and M 4%. Addition of M 2% is not effective or equal to 8% cement. The addition of M 6% equals M 4%.
Pengaruh Penggunaan Zat Admixture “X” Terhadap Peningkatan Kuat Tekan Beton (Studi Kasus “Pasir Cepu dan Kerikil Rembang”) ramadhan, bryan ramadhan; Perdanawati, Yunita; Widanto, David; Setiyadi, Budi
G - SMART Vol 2, No 1: Juni 2018
Publisher : G - SMART

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24167/gs.v2i1.1447

Abstract

This research uses Cepu sand fine aggregate as the main material of making of concrete. Cepu sand has high mud and calcium content compared to Muntilan sand.In order for Cepu sand to be used as a concrete material, it is necessary to add an integral waterproofing admixture with plasticizer content to help the aggregate density. This study, varied admixture with 0%, 50%, 100%, 150%, 200% (20ml per 1kg cement) composition. All test objects totaling 80 pieces are used for compressive strength testing with the size of 15 × 15 × 15 cm test specimens.The result of laboratory test showed that Cepu sand concrete without addition of admixture with 14 days drying was found to be the average of compressive strength of 290 kg / cm2, while the highest was obtained by addition of 100% integral waterproofing admixture with an average value of 392 kg / cm2. While on 28 days drying, the average compressive strength value is 352 kg / cm2 without using integral waterproofing admixture, while the highest is obtained with addition of 100% integral waterproofing admixture with average value of 509 kg / cm2. With additional admixture the Cepu sand has increased the compressive strength higher than Muntilan sand concrete.
Perencanaan Struktur Gedung Fakultas Teknik Universitas Moren Jalan Kranggan Semarang Sutanto, Reinard; Wihartono, Willya Moren; Widanto, David; Setiyadi, Budi
G - SMART Vol 2, No 1: Juni 2018
Publisher : G - SMART

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.24167/gs.v2i1.1434

Abstract

The construction of engineering faculty at the university of moren can be may be able to meet terms of education facilities.Building of engineering faculty university of moren is school buildings, so that including buildings class viii.The building has six floors of with total building area of 11.664 m2.The roof of the building planned use of concrete plate.The shear wall planned in central structure of the floor ground until the floor 5 to hold earthquake force direction x of 7609 kg.m and direction y of 6879 kg.mA structure for the faculty engineering university moren use 03-1726-2012 sni , SNI T-15-1991-03 , sni 2847-2013 , SNI03-1965-1990, and SNI 07-2529-1991.Planning the structure down include the stake , tiebeam , pilecap .While stuktur upper covering concrete plate  , floor plates , stairs, beam , column , and shearwall .In counting the moments and reaction on buildings it uses 2000 v.14 sofware sapThe results of result in planning the plate with thick 20 cm to floor ground and 12 cm pelat 1 until 5 to the floor and the roof .Design planning a beam B1 = 450 x 700, B2 = 350 x 500 , B3 =350 x 600, B4 = 300 x 450.Design planning a column K1 = 800 x 800.Design planning foundation piles 50 cm in the depth 18 meters