نتایج جستجو برای: tuffite
تعداد نتایج: 16 فیلتر نتایج به سال:
Based on the above studies, following conclusions can be made: The introduction of hydraulic additives into Portland cements increases their sulfate resistance, especially when have higher C 3 A content. Cements with 30% tuffite give better strength than those 20% tuffite. least aggressive for pozzolanic are 5% Na2SO 4 solution, most is 3% MgSO in which were more resistant pure cements, agreeme...
Upper Triassic sedimentary systems of both the Arabian Plate and Germanic Basin reveal climate- plate tectonic-forced effects through certain time-intervals experienced by architectural elements, lithofacies types, unconformities, flash flood deposits, maximum flooding surfaces/sequence boundary (MFS/SB), mineralogy, isotope anomalies. Further, Moon recession changes Earth’s rotation velocity (...
Abstract The South Banda back-arc basin is a morphotectonic environment that part of the Basin, characterized by flat morphology with depths ranging from 5000m to 6000m. purpose this paper analyze and relate morphometric aspects Quaternary seabed sediment deposits deposited in an active tectonic Sea area, including information on type its distribution as well relation volcanic hosted-massive su...
This study focused on the upper parts of Karaj Formation in Damavand-Firuzkoh area. Field study indicated that the green tuffites of Karaj Formation in Kilan, Hesarbone, and Zarindasht irregularly altered and changed to zeolite and bentonite. Microscopic studies of zeolitic tuffites have shown that the main components of these tuffites are altered glass shards. The shards changed to zeolites fr...
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