Sentosa Limanto

STUDI AWAL APLIKASI TEORI FUZZY SET PADA PERUSAHAAN READYMIX CONCRETE DALAM MEMILIH PEMASOK MATERIAL BETON

The strength gain of stabilized soils is not only influenced by the type and proportion of the stabilizers and its curing time, but also by the water content needed to maintain the reaction. The reaction of lime – RHA with soil is pozzolanic. Hence, the process will be subjected greatly by the amount of water to react with admixtures and the proportion of the stabilizer. This paper presents the result of a laboratory study on the unconfined compressive strength (UCS) of soils stabilized with lime and RHA, compacted at the OMC, and at the dry and wet side of OMC. The amount of lime required for stabilization (LRS) is determined by Eades and Grims Method. The results showed that the water content determines the UCS characteristics of unstabilized and stabilized soils. The UCS of stabilized soils decreased with increasing molding water content, but it is still higher than of the un-stabilized soils. In general, higher lime content results to a higher UCS. The maximum strength of the stabilized soil is attained at lime/RHA ratio of 1/2. The UCS of the stabilized soil increased significantly about 7 – 9 times to the un-stabilized UCS.

PENELITIAN AWAL PENENTUAN WAKTU PENYELESAIAN PROYEK DENGAN METODE PERT PROJECT EVALUATION AND REVIEW TECHNIQUE

Meshless Numerical Analysis Method adalah suatu metode analisa numerik yang berkembang dengan pesat sebagai alternatif metode elemen hingga (Finite Element Method) yang sudah cukup terkenal. Makalah ini merupakan seri pertama dari dua untuk mengenalkan salah satu shape function yang banyak digunakan untuk Meshless Numerical Analysis Method. Makalah seri kedua akan memperkenalkan salah satu Meshless Numerical Analysis Method yang dikenal sebagai Meshless Local Petrov-Galerkin Method.