Influence of Soil Gradation and Moulding Water Content on Fresh Adobe Mixes

Abstract

The gradation characteristics of soil play an important role in the strength and durability characteristics of soil-based construction material like soil-cement blocks, adobe, rammed earth, mud concrete, and so on. In addition, the water content at which these stabilized soil-cement composites are moulded along with the quantity of stabilizer content also influence their characteristics. The water content at which the adobe is pugged and moulded is also important. The current study attempts to understand the influence of soil gradation, especially the variation of silt and clay content, at a constant stabilizer content on the pugging moisture of the fresh stabilized adobe mixes. The experimental program also attempts to understand and establish the relation between optimum moisture content and optimum pugging moisture, the fresh moulded density etc for stabilized adobe mixes.

Review on Investigating Soil Stabilized Mud Blocks with Combined C&D Waste

“…The maximum dry density was reached when the gravel percentage was 30 for a given 10% and 15% of fines [21]. The SLS 1382-part 1 minimum strength category for loadbearing walls was met by the 10% cement with 10% and 15% fine content as well as the compressive dry and wet strengths of mud blocks measuring 325 mm, 200 mm, and 125 mm [22][23][24][25]. Prisms' compressive strengths ranged from 14.57 MPa to 69.29 MPa for cement-sand mortar, 11.26 MPa for cement-soil mortar (1:3), and 10.35 MPa for cement-soil mortar (1:6) when the load was applied parallel to the foliation [26].…”

Treatment of Variable Complex Mixed Dye Wastewater by Photodegradation with a Photocatalyst Gradation Strategy

“…To solve this complex problem caused by differences between photocatalysts and organic pollutants in photodegradation applications, , a gradation strategy may address the difficulties introduced by the complexity of wastewater components and promote the applicability of photocatalytic oxidation technology based on current photocatalyst performance. Gradation strategies have been widely adopted in the petrochemical industry to adjust the type and dosage of catalysts and form targeted catalyst combinations that meet the process requirements according to the operating conditions and reaction characteristics of the catalyst bed in a reactor. , This strategy makes it possible to adapt to changes in raw materials and product demand. The complex composition of crude oil and the range of required catalyst performance motivated the development of catalyst gradation strategies, and the treatment of real wastewater poses similar technological demands for successful photocatalysis .…”