Rammed earth construction is built by compacting humid soil into formworks layer layer, using clay fraction as only binder between the grains, without firing procedure. At this stage, material unsaturated, and capillary forces thus act to add cohesion particles. Indeed, a peculiarity of its high hygroscopic capacity, which allows water vapor be absorbed desorbed matrix. The variation hydric sta...

Wood shrinks during drying with the departure of bond water. Along the fibre direction, the magnitude of this shrinkage is mainly governed by the orientation of cellulose microfibrils (MF) in the cell wall. However, tension wood has an unexpectedly high longitudinal shrinkage considering the fact that MFs are oriented nearly parallel to the cell direction. This effect is thought to be due to th...

The objective of this paper is to investigate the effect clay stabilization and hemp content on hygric thermal performances. This experimental study based measurement sorption isotherm, moisture buffer value properties. water conductivity also investigated. results show that Hemp Clay Composites (HCC) Stabilized (HSCC) are hygroscopic buffering materials. correlations between identified for cur...

Many old buildings have unsatisfactory thermal performance compared to the standards of today. One way to increase the thermal performance is to add thermal insulation to the building envelope. However, many old buildings are listed and considered to be valuable for historical and esthetic reasons. This often limits the position and thickness of the additional insulation layer. Vacuum insulatio...

The aim of this investigation is to generate 3D models of eight different Thin Dual or Quad Leadless Moulded IC packages and conduct the performance analyses using die shear, thermal experiments and finite element analysis. Reliability plays a major role at every stage in the manufacturing, testing and use of integrated circuit packages. The coupled influence of operating voltages and joule hea...

In this study, a composite double-layer wallboard with shape-stabilized phase change humidity control materials (PCHCM) has been proposed for building usage. This novel PCHCM can absorb/release both heat and moisture to moderate indoor hygrothermal environment. Based on numerical analysis in an office Wuhan (30.52°N, 114.32°E), China, the effects of energy consumption environment investigated. ...