This research compared the compressive strength of binary and ternary alkaline-activated pozzolanic concrete. Rice husk ash (RHA) Metakaolin (MK) combined partially with Ordinary Portland Cement (OPC) each are concrete while combination rice metakaolin (RHA/MK) OPC is The was replaced at 15% RHA, MK RHA/MK in ratios 0.33 (X), 0.5 (Y) 1.0 (Z) sodium silicate (NS) to hydroxide (NH) as activator. ...

despite its matchless impact and age-old functioning in the establishment of peace all through the history, the theory of natural law remains neglected among the popular theories at the international level. domination of legal positivism, and schools of its like, has always blocked any natural healing to the ailing condition of the contemporary international system, hence some artificial and fe...

The construction industry is generally faced with so many challenges of which deterioration in concrete structures due to the Alkali-silica reaction (ASR) one pressing challenges. This causes expansion concrete, leading eventual cracking such structure and its subsequent failure. Research direction being geared towards obtaining properties pozzolanic recently discovered different biogenic pozzo...

statement of problem: few longitudinal studies have evaluated the reproducibility of natural head position (nhp) with more than six months follow-up. purpose: the present investigation was conducted to estimate the reproducibility of nhp in adult cases after three years. materials and methods: this descriptive study was performed on 27 volunteer dental students, 19-29 years of age. one radiogra...

background: rice is one of the crops, which are prone to be contaminated with toxigenic fungi and their mycotoxins. this study aimed to investigate the natural occurrence of t-2 toxin in domestic and imported rice in iran. methods: in a cross-sectional descriptive study in winter 2007, 140 samples of imported rice (125 samples of thai and 25 sam­ples of pakistani rice) and 60 samples of iranian...

a total of 3204 abo and rh blood groups were investigated in larestan and lamerd populations, in fars province, in iran. the frequency of the a gene ranged from 16.54% to 21.96, the b gene from 15.85 to 27.77% and that of the d gene from 21.49 to 33.01% ; compared with the gene frequencies of 20.97% for the b and 28.50% for the d in the general population. it seemed that the two populations stu...