Mechanical and damage similarities of adobe blocks reinforced with natural and industrial fibres

Performance of soil-matrix composite reinforced with recycled shredded fibers from waste tires

“…The shear resistance of the soil governs adhesion at the fiber-matrix interface due to the surface form and roughness of the fiber and the compressive friction forces on the fiber's surface due to the shrinkage of the soil. The enhancing effect of interface roughness on the composite's mechanical properties is only significant for fibers with a small and medium aspect ratio [15][16][17][18]49].…”

“…The increase in strength and stiffness was reported to be a function of fiber characteristics, such as aspect ratio, skin friction, weight fraction, and modulus of elasticity. Fiber-reinforced earth-based building materials more often show the development of an increased number of micro-cracks accompanied by more ductile behavior, which can be due to the redistribution of forces within the soil matrix due to the fibers holding parts of the soil matrix at large deformations [13][14][15][16][17][18][19][20][21][22][23].…”

Mechanical strength, mass loss and volumetric changes of drying adobe matrices combined with kaolin and fine soil particles

“…This soil was previously used by a construction company that specializes in the restoration of heritage earthen buildings in Chile. Also, Araya-Letelier et al [37][38][39][40] used this soil in their studies about the mechanical strength of reinforced adobe blocks. To measure the particle size distribution of the soil used in this work, a sieve analysis was performed in accordance with ASTM D 6913/D 6913M [41], which can be seen in Figure 1 (black dashed-dotted line and square symbols).…”

Unsaturated Geomechanical and Physicochemical Characterisation of Soils Used for Adobe Blocks

“…Earth blocks have been extensively studied in recent years, with a special emphasis on the evaluation of the effect of fibres and binders on their mechanical and physical properties [1]. Different authors have measured the changes in flexural and compressive strength due to the inclusion of plant [2], animal [3] and industrial fibres [2], and have concluded that fibres increase the toughness of the mixture [2], [3]. However, different results have been observed with regards to peak flexural and compressive strengths, with some authors measuring its increase [1], [4] while others observe its decrease [5].…”