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Publications (2)0 Total impact

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    ABSTRACT: Pozzolan materials obtained from various sources; when used as partial replacement for Portland cement in cement based applications play an important role not only towards sustainable development but in reducing the construction costs as well. Present study was conducted to investigate the synergic effect of Rice-Husk Ash (RHA) and Wheat Straw Ash (WSA) on the strength properties of ash substituted mortar. Ash materials were obtained after burning the wastes at 600°C for 5 h at a control rate of 2°C min. Two binary blends of mortar substituting 15% cement with WSA and RHA and three combinations of ternary blend with (10+5)%, (5+10)% and (7.5+7.5)% mix ratios of WSA and RHA, together with a control specimen were subjected to destructive (compressive and flexural strength) as well as non-destructive (ultrasonic pulse velocity) tests till 180 days of curing. Ternary blend with (7.5 + 7.5)% combination of WSA and RHA showed better strength results than control and other blends and proved to be the optimum combination for achieving maximum synergic effect.
    Journal of Applied Sciences. 01/2007;
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    ABSTRACT: Twenty one accessions from different diploid species, 10 high yielding varieties each of Triticum durum and Triticum aestivum were analysed by SDS-PAGE, to study polymorphism among the triticin protein. Also tricin gene fragment, of 21 accessions of different diploid species was amplified by PCR. No polymorphism was found in triticin protein subunits of T. durum and T. aestivum varieties but enough polymorphism was observed in wild wheats. The A-genome species - T. urartu and T. boeticum accessions having molecular weight higher than 1AS coded triticin subunits of Chinese spring can be used for further analysis. Expression of triticin subunits, in S-genome, Ae. longissima and Ae. speltoides and absence of the same in hexaploid wheats (B-gemone coded subunits) suggested that later can be transferred to cultivated wheats for increasing triticin/lysine content.
    Biotechnology. 01/2007;