Two soil profile sequences on paragneiss debris in the Val di Rabbi (Northern Italy) along an altitude gradient ranging from 1200 to 2400 m a.s.l. were studied to evaluate the effect of aspect on the weathering of clay minerals. All the soils had a coarse structure, a sandy texture and a low pH. Greater weathering intensities of clay-sized phyllosilicates (greater content of smectites) were obs...

The objective of this research paper is to analyze the materials which can be suggested for usage solve problem structural defect caused by water absorption through penetration. Each concrete types was made in five mix series 0%, 0.45%, 0.9%, 1.2%, and 1.6% chopped basalt fiber. shared into two sets where first set tested strength on day 28 curing period while second soaked immersed at room tem...

Elevated levels of contaminants in surface and ground water pose serious adverse health challenges the twenty-first century. It is imperative that quality life people without safe drinking improved by providing safe, clean affordable using appropriate purification technology. Natural clay rice husk-Na2CO3 modified were used to produce expanded aggregates adsorbents. Characterizations done SEM, ...

Objective . International practices demonstrate advantages of expanded clay in road construction difficult climatic and geotechnical conditions. The is present abundance Siberia the Far North which suitable for production gravel. At same time there a strong deficit materials these regions. aim study to develop new approach providing claydite northern roads. Method. modernization equipment means...

Smectite-rich clay is a major engineered barrier (buffer) in repositories for heat-producing highly radioactive waste. It has the form of densely compacted blocks of clay granules and is only partly water saturated from start. The initial porewater is redistributed by the thermal gradient acting in the buffer and additional water is taken up to give ultimately complete saturation. The compactio...