AGREGAT
Vol 1, No 2 (2016)

Studi Angka Koefisien Korelasi Kuat Tekan Beton Mutu Tinggi Berdasarkan Umur & Bentuk Benda Uji Standar SNI 03-2847-2002

Ray, Norman (Unknown)



Article Info

Publish Date
18 Dec 2016

Abstract

ABSTRACTPrediction of compressive strength of concrete when a initial age is very necessary to determine whether the concrete reaches the specifications and as a quality control of concrete, and finally determine the solution of action if the concrete had failured. Codes / research have been issued for a prediction (correlation ratio) but research on the correlation in high quality concrete has not been widely discussed. This study aimed to obtain age correlation ratio and speciment form correlation for high strength concrete compressive strength. Analysis using statistical probability of the normal distribution. The test results showed that the use of high strength concrete will increase  the concrete compressive strength correlation than normal quality,  correlation ratio in high quality concrete at the age 3,7,14,21,28 days was 0.40 0.68 0.91 0.94 1. Correlation ratio on high quality concrete was still above the normal strength concrete correlations. While the ratio of correlation different shape speciment of cylindrical form φ = 15, t = 30 to  15:15:15 cube is equal or with the number of correlation of 1(one). This indicates that use of different shape speciment are not  to be influence to concrete strength.Keywords: high strength concrete, ratio correlation of concrete age, ratio correlation of concrete speciment ABSTRAKPrediksi kekuatan tekan beton saat umur muda sangat diperlukan untuk meyakinkan apakah beton mencapai spesifikasi yang direncanakan dan sebagai kontrol kualitas pekerjaan beton (Quality Control), dan akhirnya menentukan tindakan selanjutnya jika beton tidak memenuhi harapan. Beberapa aturan/ rekomendasi telah dikeluarkan untuk mengatur tentang prediksi (angka korelasi) sebelumnya namun penelitian tentang angka korelasi pada beton mutu tinggi belum banyak dibahas. Penelitian ini dimaksudkan untuk mendapatkan angka korelasi umur dan rasio angka korelasi bentuk kuat tekan beton mutu tinggi. Analisa data menggunakan statistik probabilitas dalam distribusi normal. Hasil pengujian menunjukkan bahwa Penggunaan beton mutu tinggi akan meningkatkan angka korelasi umur kuat tekan beton dibanding mutu normal, angka korelasi  umur pada beton mutu tinggi pada umur 3,7,14,21,28 hari adalah 0,40 0,68 0,91 0,94 1. Nilai korelasi umur pada beton mutu tinggi ternyata masih di atas angka korelasi beton mutu normal. Sedangkan rasio angka korelasi bentuk benda uji dari silinder ϕ=15,t=30 ke kubus 15.15.15 adalah sama besar atau dengan angka korelasi sebesar 1. Hal ini menandakan bahwa penggunaan bentuk benda uji silinder atau yang lain tidak memberikan pengaruh perbedaan korelasi kekuatan tekannyaKata kunci: beton mutu tinggi, angka korelasi umur beton, angka korelasi bentuk benda uji 

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Journal Info

Abbrev

agregat

Publisher

Subject

Civil Engineering, Building, Construction & Architecture Engineering Transportation

Description

AGREGAT is a journal of Department of Civil Engineering, University of Muhammadiyah Surabaya. The journal will be published in every May and November yearly. The journal consists of result of research, literature review, and case reports created as realization of Tridharma ...