Identifikasi Kuat Acuan Terhadap Jenis Kayu Yang Diperdagangkan Di Kota Kupang Berdasarkan Sni 7973:2013

According to results of the test, quality code of each woods is: Timber = E14, Spinach = E14, Red Teak = E12, Candlenut wood = E10 and Cassowary = E15.The compressive strength perpendicular to the wood fibers: Timber= 23,00 MPa, Spinach = 31,00 MPa, Teak Red = 9,67 MPa, Candlenut= 8.67 MPa and cassowary= 21,67 MPa. The compressive strength parallel to the wood fibers: Timber = 70,33 MPa, Spinach = 79,33 MPa, Teak Red = 36,00 MPa, Candlenut= 26,00 MPa and cassowary = 50,00 MPa. Value bending strength of wood: Timber= 132,06 MPa, Spinach= 174,66 MPa, Teak Red= 59,64 MPa, Candlenut= 51,12 MPa and cassowary= 110,76 MPa. The percentage value of compressive strength test comparison between the wood fibers parallel investigation against SNI 7973: 2013: Timber= 164,01%, Spinach= 197.80%, Teak Red= 59.57%, Candlenut= 57.00% and Cassowary= 73,61%. Value percentage ratio of compressive strength test perpendicular to the wood fibers are examined against SNI 7973: 2013: Timber= 365.29%, Spinach= 527,12%, Teak Red= 131,54%, Candlenut= 143,64% and Cassowary= 479,20%. Percentage value comparison test between the flexural strength of the wood studied the SNI 7973: 2013: Timber= 312,64%, Spinach = 445,74%, Teak Red = 121,51%, Candlenut= 154,76% and Cassowary= 215.99%

Pemanfaatan Limbah Serbuk Batu Marmer Dari Gunung Batu Naitapan Kabupaten Timor Tengah Selatan Pada Campuran Paving Block

Mining of marble stone at Naitapan Stone Mountain waste floured marble sawn stone. Marble powder is a lot of buried material and its utilization is still relatively small. Seeing its potential, waste marble powder can be pursued for use as an alternative building material that is as fine aggregate substitute for sand in the manufacture of paving blocks. Replacement of sand with powdered marble will certainly affect the physical properties of the paving blocks, so that the study sought to find out great compressive strength and water absorption of aggregate paving block that uses finely powdered marble. Study the specimen in the form of paving block with dimensions of 20 x 10 x 6 cm by 60 test specimens treated with 2 marble powder replacement that is 50% and 100% of the weight of the sand and using a pressing of 50 kg/cm2 on comparative variation mixture of 1:2, 1:4, 1:6, 1:8 and 1:10. To determine the quality of paving block, then do the testing compressive strength and water absorption at 28 days old. Based on research results obtained that by pressing the same, paving block with a 100% replacement of marble powder produces compressive strength value is higher than the replacement of paving blocks with 50% marble powder. Water absorption of produced paving blocks with 100% replacement of marble powder is smaller than the replacement of 50% marble powder. Higher value of compressive strength of paving blocks at 28 days with 100% replacement of marble powder amounted to 39,75 MPa, 34 MPa, 25 MPa, 20 MPa and 14 MPa respectively each participated in the mixture ratio 1:2, 1:4 , 1:6, 1:8 and 1:10. With the higher water absorption value respectively also for each mixture ratio is equal to 7%, 7,45%, 7,48%, 7,51% and 7,59%. While the value of compressive strength of paving blocks with replacement of 50% marble powder amounted to 38,75 MPa, 25,50 MPa, 15 MPa, 11 MPa and 10 MPa respectively each participated in the mixture ratio 1:2, 1:4, 1:6, 1:8 and 1:10. And large water absorption value respectively also for each mixture ratio amounted to 8,15%, 8,88%, 9,09%, 9,29% and 9,31%

Penggunaan Limbah Batu Marmer Dari Gunung Batu Naitapan Kabupaten Timor Tengah Selatan

The activity of marble mining at Mount Naitapan produces wastes such as powder and marble rocks. Efforts to utilize this waste as an alternative to aggregate in concrete mix. This research aims to discover the magnitude of compressive strength if aggregates in concrete that using marble waste as replacement. Specimens used is concrete cylinders. The marble waste used in three treatments of substitution they were substitution of marble powder by sand, marble rocks by the split stone, marble powder and marble rock by sand and split stone.The percentage of each substitution is 25%, 50%, 75%, 100%. The test result showed that for concrete with the substitution of marble powder by the sand and substitution of marble powder and marble rock by sand and split stone to substitute 75% increase while the compressive strength of 100% lower compressive strength. Substitution of marble rocks by the split stone had increased compressive strength

Studi Kinerja Jalan Akibat Hambatan Samping Di Jalan Timor Raya Depan Pasar Oesao Kabupaten Kupang

Poor land use management systems and transportation management systems nowadays more visible in various areas in the East often lead to complicated problems. One segment of Timor Raya street is often jammed in Oesao Market area, this happens because of the many traders who trade on the curb lane to the shoulder of the road . In addition the number of vehicles parked on the shoulder of the road further aggravate the condition of the road especially at busy times. From the results of the analysis indicate that the side friction road values were very high at 3998.60 events caused by the presence of market activity in the left and right side of the road, too many parked vehicles and pedestrian which is reducing the effective width of the road that directly affect the performance of the road itself . This problem caused actual speed at the road segment becoming increasingly low at 23,49 km/h with average travel time of 0.0125 hours . The results of analysis show that the level of service is at grade E. The biggest factor that is very influential in determining the level of service at the location is the market activity at the sides of the which increase the side frictio

Pengaruh Penambahan Gula Pasir Terhadap Kuat Tekan Dan Sifat Kedap Air Mortar

Penggunanan mortar pada pekerjaan dinding rumah, kamar mandi, ataupun bak air saat ini belum maksimal karena banyak dijumpai retak dan tidak kedap air. Dalam mengatasi masalah ini biasa digunakan bahan kimia tambahan (chemical admixtures), tetapi bahan kimia tersebut harganya mahal dan sulit didapat. Penelitian ini bertujuan untuk mengetahui pengaruh penambahan gula pasir terhadap kuat tekan dan sifat kedap air pada mortar. Benda uji yang dipakai untuk pembuatan mortar berbentuk kubus berukuran 5 x 5 x 5 cm dengan variasi penambahan gula pasir 0%, 0,05%, 0,10%, 0,15%, 0,20%, 0,25%, dan 0,30% dari berat semen. Variasi campuran yang dipakai adalah 1PCC : 4Psr, 1PCC : 6Psr, dan 1PCC : 8Psr. Kuat tekan mortar maksimum adalah kuat tekan mortar dengan penambahan gula pasir 0,10 – 0,15% dan menyebabkan kenaikan kuat tekan 18,4% dari kuat tekan mortar normal. Porositas dan absorpsi mortar yang paling kecil adalah mortar dengan tambahan gula pasir 0,10 – 0,15% . Porositas mortar turun 9,99% dari porositas mortar normal dan absorpsi turun 11,84% dari absorpsi mortar normal