Salah satu bahan konstruksi yang banyak digunakan adalah beton. Teknologi campuran pada beton terus berkembang, salah satunya perkembangan Beton Mutu Tinggi (High Strength Concrete/HSC). Tujuan dari penelitian ini mendapatkan mutu tinggi dengan memanfaatkan abu vulkanik gunung Sinabung sebagai campuran. Metode eksperimental dilakukan di laboratorium. Campuran menggunakan komposisi semen, silica...

Bitter vetch protein films containing positively charged spermidine, alone or with low amounts of glycerol, showed high tensile strength that progressively decreased by increasing the plasticizer concentration. Accordingly, lower film elongation at break and higher Young's module values were detected in the presence of the polyamine without or with small amounts of glycerol. These data suggest ...

The aim of our research was to investigate theeffect of the length of the polymer chain and the concen-tration of triethyl citrate used as a plasticizer on the thermalstability of the film structure in the case of two ethyl cel-lulose films (EC 10 and EC 45) used for preparing MRdosage forms. The influence of storage time was studied bymonitoring the changes in the therm...

Jude K. Coompson, B.S. Marquette University, 2014 Benzene is a constituent component of crude oil that has been classified as a carcinogen by the EPA with a maximum contamination level (MCL) of 5ppb in drinking water. However, of the aromatic compounds, benzene has one of the lowest polymer-water partition coefficients using commercially available polymers as sensor coatings, resulting in poor ...

Objective(s): A Box-Behnken design was used for evaluation of Eudragit coated diclofenac pellets. The purpose of this work was to optimize diclofenac pellets to improve the physicochemical properties using experimental design. Materials and Methods: Diclofenac was loaded onto the non-pareil beads using conventional coating pan. Film coating of pellets was done at the same pan. The effect of pla...

The use of Acetyl Salicylic Acid (ASA) in the secondary prevention of cardio vascular diseases is well known. Orally administered ASA is rapidly metabolized to its principal metabolite Salicylic Acid (SA) in the gastrointestinal fluids, during absorption in the intestine and liver. ASA, and not its hydrolysis product SA, which exhibits antithrombotic activity. Transdermal delivery of acetylsali...

In the present research, optimum condition of grout consisting cement, fly ash, superplasticizer, and water was determined to produce most durable impermeable deep mixing columns (DMC) on silty soils. It is aimed reduce cost environmental pollution by using high-rate ash in grout. Superplasticizer additive used increase flow consistency ash. The design experiments made 5-parameter 4-level L16 o...

The article presents a comparative analysis of the methods introducing fine perlite into cement systems. first method is dry mixing additive with cement, followed by water polycarboxylate plasticizer. second based on powder stabilized suspension finely dispersed instead water. Before introduction studies its aggregation and sedimentation stability were carried out. It was found that suspensions...

This research work focuses on development of Artificial Neural Networks (ANNs) in prediction of compressive strength of concrete after 28 days. To predict the compressive strength of concrete six input parameters that are cement, water, silica fume, super plasticizer, fine aggregate and coarse aggregate are identified. A total of 639 different data sets of concrete was collected from the techni...