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All Journal Inersia : Jurnal Teknik Sipil dan Arsitektur
Endaryanta Endaryanta
Department Of Civil Engineering, Faculty Of Engineering, Universitas Negeri Yogyakarta
Civil Engineering, Building, Construction & Architecture

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PENGARUH KADAR AIR TERHADAP KUAT GESER PADA TANAH LANAU Endaryanta Endaryanta
Inersia : Jurnal Teknik Sipil dan Arsitektur Vol 2, No 1 (2006): Maret
Publisher : Universitas Negeri Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1292.912 KB) | DOI: 10.21831/inersia.v2i1.8300

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Landslide disaster such as bank slide or embankment slide often occurs.This it begins with a simple problem, that is infiltration of rain water into soilcausing the decrease of soil strength resulting in collapse. The research triesto explain the water influe'nce at the shear strength of soil to find out how muchwater content may induce soil collapse.This experimental research was conducted in the soH laboratory usingmud from Imogiri, Bantul conditioned in several water contents (from 10% to500/0) and direct shear tests were then applied. This experiment would produceCD (internal soil shear angle), c (soil cohesion), and finally slide off soil safetyfactor (F).This research has resulted:1. at a low water content (10%) the CD soil is low, the CD increases by increasingthe water content, but the next increas of water' content causes a decreaseof CD. The maximum CD (32.5°) reaches at 23% of water content.2. at a low water content (10%) the c soil is low, the c increases by increasingthe water content, but the next increasing of water content causes a decreaseof c. The maximum c (0.076 kg/cm2) reaches at 22% of water content.3. at a low water content (100/0) the F soil is low, the CD increases by increasingthe water content, but the next increasing of water content causes a decreaseof F. The maximum F reaches at 21% of water content.Key words: mud, soil, water content, shear strength, cohesion, land slide.
ANALISIS STABILITAS TALUD BRONJONG UIN SUNAN KALIJAGA YOGYAKARTA Muhammad Rosihun; Endaryanta Endaryanta
Inersia : Jurnal Teknik Sipil dan Arsitektur Vol 7, No 2 (2011): Desember
Publisher : Universitas Negeri Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (1058.899 KB) | DOI: 10.21831/inersia.v7i2.3690

Abstract

Talud is a building that was built to prevent the collapse of steep soil or slopeswhere stability can not be guaranteed by the slope itself. The analysis in this finalproject aims to determine whether or not securely retaining wall located at theGadjah Wong River UIN Sunan Kalijaga Yogyakarta, strong bearing on the stabilityof the soil, slide and bolster the influence of the earthquake were included. Method ofstability analysis talud bronjong Gadjah Wong River UIN Sunan Kalijaga Yogyakartausing the formula of the source book Harry Christady Hardiyatmo, Foundations ofEngineering I, 2006, namely in the Terzaghi equations, equations Hansen (1970)and Vesic (1975). Talud Bronjong at Gadjah Wong River UIN Sunan KalijagaYogyakarta secure in looking it from the stability of shift. Talud Bronjong at GadjahWong River UIN Sunan Kalijaga Yogyakarta secure in the stability of the overthrowbecause of Fgl sf. Talud Bronjong at Gadjah Wong River UIN Sunan KalijagaYogyakarta secure in the carrying capacity of land due to Qmax ≤ qa ie 581.4 ≤833.64 KN/m2.Keywords: Analysis, Stability, Talud
STUDI EKSPERIMENTAL KINERJA STRUKTURAL BETOM RINGAN AERASI (AUTOCLAVED AERATED CONCRETE) DENGAN VARIASI THIN BED MORTAR) Endaryanta, Faqih Ma'arif, Imam Muchoyar
Inersia : Jurnal Teknik Sipil dan Arsitektur Vol 8, No 2 (2012): Desember
Publisher : Universitas Negeri Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (9028.769 KB) | DOI: 10.21831/inersia.v8i2.3997

Abstract

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STUDI EKSPERIMEN PENGGUNAAN VARIASI AGREGAT BANTAK (MERAPI) DAN MATERIAL LOKAL MENGGUNAKAN BITUMEN SHELL (SINGAPORE)PADA LALU LINTAS BERAT Endaryanta -
Inersia : Jurnal Teknik Sipil dan Arsitektur Vol 10, No 1 (2014): Mei
Publisher : Universitas Negeri Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21831/inersia.v10i1.4430

Abstract

Road engineering is one of the main problem in this country. Rigid pavement frequently defective before load capacity of performance exceeded. Necessary innovation so that the use of material obtained bituminous materialas have good performance. This research caried out of Bantak Merapi as Main materials, combined with local materials Progo and shell Singapore as cementitious materials on flexible pavement to weight load. The Research method used is experiment laboratory with 3 (three) varians (Bantak 100%; Bantak coarse agregat; fine and filler agregat from Progo; coarse and fine agregate Progo; and bantak as filler), each varians consist of 15 samples. Variation of cementitious bitumen are 5%; 5,5%; 6%; and 7% respectively. All specimen have been tested using Marshall laboratory test (dencity; stability; flow; Void in Mix (VIM); Void Filled Bitumen (VFB); Void in Mineral Agregate (VMA); and Marshall Quotient (MQ). Test result showed that values of density; stability; flow; Void In Mix (VIM); Void Filled Bitumen (VFB); Void Minerals Agregat (VMA) and Marshall Quotient were the results 2.16gr/cc; 1230,4kg; 3,42mm; 8,19%; 46,2%; 15,3% dan 376,2 kg/mm respectively. The effective of proportion mix for flexible pavement are Bantak coarse agregate, fine and filler Progo (based on flow values, Void filled bitumen and Marshall Quotient).Kata kunci: Aspal, Bantak, Merapi, Marshall.
Pemanfaatan dan Modifikasi Limbah Plastik untuk Perbaikan Sifat Teknik (Kuat-Geser) Tanah Lempung Endaryanta Endaryanta; Dian Eksana Wibowo
Inersia : Jurnal Teknik Sipil dan Arsitektur Vol 12, No 2 (2016): Desember
Publisher : Universitas Negeri Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21831/inersia.v12i2.12585

Abstract

ABSTRACTThis study aims to determine: (1) the value of unconfined compressive strength (qu) clay mixed shredded plastic waste serrated; (2) the value of the internal friction angle (φ) soil mixed shredded plastic waste serrated; (3) the value of soil friction (c) soil mixed shredded plastic waste serrated. This study used an experimental method. Plastic waste is cut by the jagged edges 1x1 cm and 1x0,5 cm then mixed in clay, compacted, and then tested robust free press and direct shear. Clay samples taken at elevation -0.30 m of area from Punukan Kulon Progo and Kasongan Bantul. Waste plastics using a former mineral water containers (plastic types PET). The results showed that the addition of pieces of plastic waste that size on clay will: (1) raise the value of the unconfined compressive strength (qu) of land at the rate of plastic 3% clay Kasongan, and if pieces of plastic rather large 1x1 cm on clay Wates (2) increase the internal friction angle (φ) if the levels of plastic 3% (clay Kasongan) and on clay Wates but only if the plastic is cut rather large 1x1 cm. (3) Soil frictionis going up at the rate of 2% plastic (clay Kasongan), raise the coherence, clay Wates if the plastic pieces small size 0,5x1 cm.Keywords: clay, direct shear, free press, waste plasticsABSTRAKPenelitian ini bertujuan untuk mengetahui: (1) nilai kuat-tekan bebas (qu) tanah lempung yang dicampur cacahan limbah plastik bergerigi; (2) nilaisudut gesek intern  (φ) tanah yang dicampur cacahan limbah plastik bergerigi; (3) nilai  lekatan (c) tanah yang dicampur cacahan limbah plastik bergerigi. Penelitian ini menggunakan metode eksperimen. Limbah plastik dipotong-potong secara tepi bergerigi ukuran 1x1 cm dan 1x0,5 cm kemudian dicampurkan pada tanah lempung, dipadatkan, lalu diuji kuat tekan bebas dan geser langsung. Sampel lempung diambil pada elevasi -0,30 m dari daerah Punukan Kabupaten Kulonprogo dan Kasongan Kabupaten Bantul. Limbah plastik menggunakan bekas wadah air mineral (plastik jenis PET).Hasil penelitian menunjukkan bahwa penambahan potongan limbah plastik ukuran tersebut pada lempung akan: (1) menaikkan nilai kuat tekan bebas (qu) tanah pada kadar plastik 3% lempung Kasongan, dan jika potongan plastiknya agak besar 1x1cm pada lempung Wates (2) menaikkan sudut-kuat-geser (φ) jika kadar plastik 3% (lempung Kasongan) dan pada Lempung Wates tetapi hanya jika plastiknya dipotong agak besar 1x1cm. (3) lekatan akan naik pada kadar plastik 2% (lempung Kasongan), menaikkan lekatan, Lempung Wates jika potongan plastik ukuran kecil 0,5x1cm.Kata kunci: geser langsung, lempung, limbah plastik, tekan-bebas.
UPAYA MENINGKATKAN KUAT GESER TANAH LEMPUNG DENGAN MEMANFAATKAN LIMBAH PLASTIK Endaryanta, Dian Eksana Wibowo
Inersia : Jurnal Teknik Sipil dan Arsitektur Vol 12, No 1 (2016): Mei
Publisher : Universitas Negeri Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (235.543 KB) | DOI: 10.21831/inersia.v12i1.10341

Abstract

ABSTRACTThe objectives of this study was to determine: (1) the effect of the addition of plastic waste ofmineral watercontainers (in some variations and percentages) to qu (the value of unconfined compressive strength) of clay, (2)the effect of the addition of the plastic waste to φ (the shear strength) of clay, (3) the effect of the addition of theplastic waste to c (the adhesiveness) of clay. This study applied anexperiment method. The plastics were cut intothe sizes of 1x1 cm and 1x0,5 cm, then they were mixed in the clay, compacted, and then tested. Theclaysamples were taken from Wates (Jl. Wates km 7) Kulonprogro and Kasongan Bantul at a depth of -0.20 m. Theplastic waste used was the mineral water container (PET plastic). The results showed that the addition of plasticwaste ofmineral water containers: (1) raises the value of qu (unconfined compressive strength) of the clay fromWates with 1% - 2% of plastics and the clay from Kasongan with 1% of plastics (2) raisesthe shear strength φ, ifthe level of plastics was 1% - 3% in the clay from Wates and Kasongan but if only the plastics were cut into smallpieces (c) decreases the adhesion, unless the plastic were in small sizes at the level of 3% (clay from Wates) andif the plastics were in large size (clay from Kasongan).Keywords: clay, plastic waste, unconfined compressive strengthABSTRAKPenelitian ini bertujuan untuk: (1) mengetahui pengaruh penambahan potongan limbah plastik wadah air mineral(pada beberapa variasi dan persentase) terhadap qu (nilai kuat-tekan-bebas) tanah lempung, (2) mengetahuipengaruh penambahan potongan limbah plastik terhadap φ (sudut kuat geser) tanah lempung, (3) mengetahuipengaruh penambahan potongan limbah plastik terhadap c (lekatan) tanah lempung.Penelitian ini menggunakanmetode Eksperimen. Limbah plastik dipotongukuran 1x1 (cm) dan 1x 0,5 (cm) kemudian dicampurkan pada tanahlempung, dipadatkan, lalu diuji kuat tekan bebasnya. Sampel lempung diambil dari Wates (Jl. Wates km 7)Kulonprogo dan Kasongan Bantul pada elevasi -0,20 m. Limbah Plastik menggunakan bekas wadah air mineral(plastik jenis PET).Hasil penelitian menunjukkan bahwa penambahan potongan limbah plastik ukuran tersebutpada lempung dapat: (1) menaikkan nilai qu (kuat tekan bebas) tanah pada kadar plastik 1%-2% lempung Watesdan kadar plastik 1% pada lempung Kasongan(2) menaikkan sudut-kuat-geser φ jika kadar plastik 1%-3%lempung Wates dan Lempung Kasongan tetapi hanya jika plastiknya dipotong kecil (c) menurunkan lekatan,kecuali jika potongan plastik ukurannya kecil pada kadar plastik 3% (lempung Wates) dan jika potongan plastikukurannya besar (lempung Kasongan).Kata kunci: lempung, limbah plastik, tekan bebas
Usaha Peningkatan Daya Dukung Tanah Lempung Menggunakan Layer Krikil, Anyaman Bambu dan Kombinasi Kolom-Layer Pasir Dian Eksana Wibowo; Hermawan Wahyu Rahmadianto; Endaryanta Endaryanta
Inersia : Jurnal Teknik Sipil dan Arsitektur Vol 17, No 1 (2021): Mei
Publisher : Universitas Negeri Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21831/inersia.v17i1.40629

Abstract

ABSTRACT Clay soil is soil that has a low value of pressure strength and bearing capacity. The purpose of this study is using a layer of gravel, woven bamboo, and a combination of column-layer sand as an alternative to improve the carrying capacity of clay soil, then the results from the tests are compared with each other. The method in this study is experimental. The samples of soil were taken from Kalangan, Kasihan, Bantul, D.I. Yogyakarta. The foundation soil model using steel tub size 100x100x40 cm, with soil volume 100x100x30 cm. Soil loading uses steel plates that are loaded with hydraulic jacks, equipped with a proving ring as a load reader. The column-layer combination consists of 3 sand layers, 1 cm thick horizontal position and 5 cm spacing between layers. The sand column is 1 cm in diameter with a hole depth of 20 cm. The gravel layer pattern consists of 3 layers of gravel with a layer thickness of 2 cm, the distance between the layers is 5 cm. Woven bamboo pattern: 1 layer with a length of 20x20 cm. Placement of woven bamboo at a depth of 2 cm from the ground. The results of the research are; (1) The Soil is a high plasticity (CH) inorganic clay based on the USCS system, including the medium to poor clay soil group (A-7-6 (40)) based on the AASHTO system. (2) The Strengthening of gravel layer increases the ultimate bearing capacity by 2.5 times or 159.02%, while bamboo matting provides an increase in bearing capacity by 2.7 times or 170.49%, and the combination of column-layer sand by 2.2 times. or 127, 87%.  (3) The reinforcement of bamboo mats provides the highest increase in bearing capacity in clay soil between the gravel layer and the combined reinforcement of the sand column and the sand layer. This shows that the use of woven bamboo is more effective as a material for strengthening clay. ABSTRAKTanah lempung adalah tanah yang mempunyai nilai kekuatan tekanan serta nilai daya dukung rendah. Tujuan penelitian ini adalah penggunaan layer kerikil, anyaman bambu, dan kombinasi kolom-layer pasir sebagai alternatif perbaikan peningkatan daya dukung tanah lempung, kemudian hasil dari pengujian dibandingkan satu sama lain. Metode yang digunakan adalah experimen. Sampel tanah diambil dari Kalangan, Kasihan, Bantul, D.I. Yogyakarta. Pemodelan tanah pondasi menggunakan bak baja ukuran 100x100x40cm, volume tanah 100x100x30cm. Pembebanan tanah menggunakan pelat baja yang dibebani dengan dongkrak hidrolik, dilengkapi proving ring sebagai pembaca beban. Kombinasi kolom-layer pasir terdiri dari 3 lapis pasir, posisi horizontal tebal 1 cm dan jarak antar lapisan 5 cm. Kolom pasir diamter 1 cm dengan kedalaman lubang 20 cm. Pola layer kerikil terdiri 3 lapis kerikil dengan ketebalan lapisan 2 cm, jarak antar lapisan 5 cm. Pola anyaman bambu:1 lapis dengan panjang-lebar anyaman 20x20 cm. Penempatan anyaman bambu pada kedalaman 2 cm dari permukaan tanah. Hasil penelitian yaitu ; (1) Tanah merupakan tanah lempung anorganik plastisitas tinggi  (CH) berdasarkan sistem USCS, termasuk kelompok tanah berlempung kualitas sedang sampai buruk (A-7-6(40)) berdasarkan sistem AASHTO. (2) Perkuatan layer kerikil meningkatkan daya dukung ultimit sebesar 2,5 kali atau 159,02 %, sedangkan anyaman bambu memberikan peningkatan daya dukung sebesar 2,7 kali atau 170,49 %, dan kombinasi kolom-layer pasir sebesar 2,2 kali atau 127, 87%. (3) Perkuatan anyaman bambu memberikan peningkatan daya dukung paling tinggi pada tanah lempung diantara bahan perkuatan layer kerikil dan perkuatan gabungan kolom pasir dan layer pasir. Hal ini menunjukkan bahwa penggunaan anyaman bambu lebih efektif sebagai bahan perkuatan tanah lempung.
PERBAIKAN TANAH LANAU UNTUK BAHAN JALAN MENGGUNAKAN LIMBAH BATA - Endaryanta
Inersia : Jurnal Teknik Sipil dan Arsitektur Vol 6, No 2 (2010): Desember
Publisher : Universitas Negeri Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21831/inersia.v6i2.10543

Abstract

ABSTRACTThe earthquake in Bantul, Yogyakarta at Mei 27, 2006 appeared a lot ofproblems for peoples. Besides psychological and physical excesses,, a great deal ofthe rubbish material accumulated as the result of building destruction. This paper triesto implement the brick rubbish material for improving the soil street strength atvillages. This experiment research that was done by CBR-test at pure soil as well as atsoil with grain brick mixture is aimed to explain the appropriate grain brick compositionmust be mixed into soil in order to get a maximum strength of soil. The results of theresearch are: 1. adding grain brick into soil could increase the strength of soil bearingparallel with increasing the CBR-value.2. the fine grain brick significantly increase thestrength of soil mix. 3. the CBR-value of soil mixed with grain brick is reached at36%.Keywords : brick, rubbish, CBR, soil bearing, soil strength.
PEMANFAATAN LIMBAH KARBIT DAN PASIR SEBAGAI USAHA PERBAIKAN TANAH LEMPUNG MENGGUNAKAN UJI CBR DAN KONSOLIDASI DENGAN PEMADATAN LABORATORIUM Dian Eksana Wibowo; Endaryanta Endaryanta
Inersia : Jurnal Teknik Sipil dan Arsitektur Vol 13, No 2 (2017): Desember
Publisher : Universitas Negeri Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | Full PDF (134.929 KB) | DOI: 10.21831/inersia.v13i2.17181

Abstract

ABSTRACT Many cases of buildings such as highways, parking areas, buildings, damaged / cracked and undulating and excessive sets resulting from clay soil behavior on the ground. The ugly nature of this soil technique can actually be reduced for example by soil stabilization. Chemical stabilization can be by mixing clays with cement, lime, or waste carbide and sand. The experimental method research was conducted on clay from Prambanan by mixing waste of carbide and sand. Mixing is done through 3 modes: direct mix, sand-lime columns, and layer. These objects are then tested for CBR and Consolidation test. The result of this research is CBR value, and Cc Cr value. The results showed that: Based on CBR-test the results obtained: a) CBR-soaked value will rise up to 93.8% (from the original 2.12% to 4.11%) with Layer 3cm mode. b). The CBR-soaked value can rise 45.7% (from the original 2.12% to 3.09%) with the 1.5-inch column mode. c) The CBR-unsoaked value will fall slightly to 1.7% (from the original 11.26% to 11.07%) in the layer mode. d) The CBR-unsoaked value could rise 3.2% (from the original 11.26% to 11.62%) in column mode. Based on the Consolidation test obtained: a) The Cc Compression Index value of the soil will decrease if the clay is mixed with sand + carbide waste. The more the mixture of sand + carbide waste (up to 15%) then the value of Cc will decrease further. The percentage decrease in the value of Cc is 108.7% (from the original 0.215 to 0.103). b) Recompression Coefficient Value / Cr ground development will decrease if clay is mixed with sand + carbide waste. The more the mixture (up to 15%) then the value of Cr will decrease further. Cr value percentage of Cr is very big, that is 233.% (from the original 0.010 to 0.003). This result indicate that this methods will improve the clay soil, namely : a) increase the strength of soil,  b) decrease (drastic) the  compressibility / expandsivity of clay soil. Keywords : CBR, waste-carbide, clay, consolidation.                                                                                                               ABSTRAK Banyak kasus bangunan semisal : jalan raya, areal parker, gedung, yang rusak/retak-retak dan bergelombang dan setlemen berlebih yang diakibatkan oleh  perilaku/sifat tanah lempung di tanah dasar.  Sifat teknik tanah yang jelek ini sebenarnya bisa direduksi misalnya dengan stabilisasi tanah. Stabilisasi kimiawi bisa dengan cara mencampur lempung dengan bahan semen, kapur, atau limbah karbit dan pasir.  Penelitian metode eksperimen ini dilakukan pada lempung dari Prambanan dengan cara dicampur limbah karbit dan pasir. Pencampuran ditempuh melalui 3 mode yaitu : mix langsung, kolom pasir-kapur, dan layer.  Benda-benda- uji ini lalu diuji CBR dan uji Konsolidasi. Hasil penelitian ini  berupa nilai CBR, dan nilai Cc Cr.  Hasil penelitian menunjukkan bahwa :Berdasarkan uji-CBR diperoleh hasil : a) Nilai CBR-soaked akan naik sampai 93,8% ( dari asli 2,12% menjadi 4,11%) dengan mode  Layer 3cm.  b). Nilai CBR-soaked bisa naik 45,7% (dari asli 2,12% menjadi 3,09%)dengan mode kolom 1,5 inci.  c) Nilai CBR-unsoaked akan turun sedikit sampai 1,7% (dari asli 11,26%  menjadi 11,07%) pada mode layer.  d) Nilai CBR-unsoaked bisa naik 3,2% ( dari asli 11,26% menjadi 11,62%) pada mode kolom.  Berdasarkan uji Konsolidasi diperoleh : a) Nilai Indek Compressi Cc tanah akan menurun jika lempung dicampur pasir + limbah karbit. Makin banyak campuran pasir + limbah karbit (sampai 15%) maka nilai Cc akan makin menurun. Prosentase penurunan nilai Cc adalah sebesar 108,7% ( dari aslinya 0,215  menjadi 0,103 ).   b) Nilai Koefisien Rekompressi / pengembangan tanah Cr  akan menurun jika lempung dicampur pasir + limbah karbit. Makin banyak campurannya (sampai 15%) maka nilai Cr akan makin menurun. Prosentase penurunan nilai Cr adalah amat besar, yaitu sebesar 233,3 % ( dari aslinya 0,010 menjadi 0,003 ).Hasil ini menunjukkan bahwa cara ini akan memperbaiki tanah lempung, yaitu : a) menaikkan (sedikit) kuat dukung tanah tidak terendam , b) amat menurunkan ekspansivitas tanah lempung. Kata kunci: CBR, limbah-karbit, lempung, konsolidasi.
PENGARUH PENGGUNAAN KAPUR BAKAR DAN KAPUR GILING (MILL) TERHADAP KUAT TEKAN SPESI Endaryanta Endaryanta
Inersia : Jurnal Teknik Sipil dan Arsitektur Vol 1, No 2 (2005): September
Publisher : Universitas Negeri Yogyakarta

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.21831/inersia.v1i2.8242

Abstract

ABSTRACTBurned and raw limestone powder is a kind of binder that has been widelyused in traditional construction of masonry and clay brick wall. Nowadays,limestone powder also widely used in many construction projects as a portlandcement admixture. This research is designed to examine the effects of burnedand raw limestone powder on the compressive strength of mortar.This research has been done with experimental method using variouscomposition in mortar mix design. The compositions that used in this researchare 1:1/4:3, 1:3/4:3, 1:1:3 and 1:2:3 of portland cement, limestone powder andsand, with six standard cubes for each average of mortar compressive strength,that have been tested in the Laboratory of Building Material, Department of CivilEngineering and Planning Education, Faculty of Engineering in State Universityof Yogyakarta.Test results indicate that (a) average of mortar compressive strength using1:1/4:3 composition of portland cement, limestone powder and sand is 24,79MPa for burned limestone powder and 16,3 MPa for raw limestone powder, (b)average of mortar compressive strength using 1:3/4:3 composition of portlandcement, limestone powder and sand is 14,14 MPa for burned limestone powderand 13,28 MPa for raw limestone powder, (c) average of mortar compressivestrength using 1:1:3 composition of portland cement, limestone powder and sandis 12,28 MPa forburned limestone powder and 7,78 MPa for raw limestonepowder, (d) average of mortar compressive strength using 1:2:3 composition ofportland cement, limestone powder and sand is 8,56 MPa for burned limestonepowder and 7,18 MPa for raw limestone powder, (e) There is a significantdifference of mortar compressive strength using burned limestone powder andraw limestone powder, (f) the use of burned limestone powder as portland cementadmixture is better than raw limestone powder that indicated from the result ofcompressive strength tests.Keywords: nlortar, conzpressive strength, lilnestone po~vder.
Co-Authors Dian Eksana Wibowo Hermawan Wahyu Rahmadianto Muhammad Rosihun