Abstract
This research analyses straw degradation inside straw bale walls in the region and develops the prediction of degradation inside straw bale walls. The results show that the straw inside straw bale walls have no serious concerns of degradation in the high hygrothermal environment in the region with only moderate concerns of degradation in the area 2–3 cm deep behind the lime render. The onsite investigations indicate that the degradation isopleth model can only predict straw conditions behind the rendering layer, whereas the isothermal model fits the complete situation inside straw bale walls. This research develops the models for predicting straw degradation levels inside a straw bale building in a warm (humid) continental climate. The impact of this research will help the growth of low carbon energy efficient straw bale construction with confidence pertaining to its long-term durability characteristics both in the region and regions sharing similar climatic features globally.
Highlights
Straw bale construction uses agricultural co-products in the building industry [1]
The availability ofaerobic oxygendecomposition for microorganisms inside with suitableand hygrothermal environments leading to the readily of straw straw determines what kind of degradation occurs
Straw bale walls are commonly isolated from the external environment by a render layer degradation, with suitable hygrothermal environments leading to the readily aerobic decomposition and oxygen concentration can only support the initial aerobic degradation of straw [14]
Summary
Straw bale construction uses agricultural co-products in the building industry [1]. This building type was originally developed in Nebraska in the late 19th century due to a shortage of building materials [1]. There are Environment two kinds of for degradation within straw bale walls, namely aerobic degradation. The availability of oxygen for microorganisms inside straw determines aredegradation two kinds occurs. Of degradation processes within straw bale walls, namely aerobic whatThere kind of. Straw bale walls are commonly isolated from the external environment by a render layer degradation, with suitable hygrothermal environments leading to the readily aerobic decomposition and oxygen concentration can only support the initial aerobic degradation of straw [14].
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