نتایج جستجو برای: pozzolanic activity
تعداد نتایج: 1134867 فیلتر نتایج به سال:
Abstract Rice husk is considered as a waste product of farming. However, rice ash (RHA) has good pozzolanic activity, which can be used in cement-based materials supplementary cementitious material (SCM), and it also suitable for self-compacting concrete (SCC). This study reviews the physical chemical properties RHA RHA–SCC mixtures such fresh (crucial factors evaluation methods workability SCC...
Abstract Pozzolanic additives set off a fundamental part of high strength and most durable concrete mix design. materials include natural products such as volcanic product (ashes pumice) by-product includes metakaolin, rice husk ash, silica fume, fly ash etc. Diatoms have been utilized one the pozzolanic in industrial sectors construction industries to improve rheological mechanical properties ...
In this study, it was aimed to stabilize the dredged materials with low bearing capacity, brought from Edirne, by using cement and pozzolanic binder mineral additives. first stage of geotechnical properties dredging were determined. Then, optimum water contents maximum dry unit weight values soil samples without additives different additive ratios found compaction tests. Pure unconfined compres...
Across the world, a huge amount of waste materials is deposited from different industrial or construction activities. Out this massive quantity, petite recycled and remaining dumped in vulnerable lands. This paper deals with potential utilization solid reactive powder concrete, practically powdered glass originating bottles ceramics tile process. First, optimum ratio pozzolanic material (cerami...
The cement industry faces an increasing demand for new supplementary cementitious materials (SCMs) as alternative to slags and ashes, the sources of which are in continuous depletion. This study reports on characteristics synthetic aluminosilicate glasses derived from basalt composition (BGs) SCMs. pozzolanic activity developed well their influence hydration kinetics, microstructure, mechanical...
Portland-composite cements (PCC) were prepared with partial substitution of 5 to 25% class C fly ash, obtained from East Java steam power plant. Properties the composite was evaluated, through setting time (initial and final) compressive strength (3, 7, 28 days) compared control PCC. Setting is retarded in higher ash content. The retardation highest PCC ash. Lower after 3 7 days curing for 5-25...
Channel lining is essential to increase resistance against scour, reducing water losses and as a result increase water conveyance efficiency. Since the canal lining has significant costs, selection of type of lining must be made with great care and with considering engineering properties. One of the conventional lining for water conveyance cannel is concrete lining. Because of advantages of con...
Kaolin is an industrial mineral used in a wide variety of applications due to its crystalline structure, and elemental composition. After kaolin undergoes heat treatment specific temperature range, metakaolin, which exhibits strong pozzolanic reaction, formed. This paper examines the effects different qualities on thermal activation process metakaolin production. The depend impurities they cont...
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