A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Resilient Modulus of Lime-Bamboo Ash Stabilized Subgrade Soil with Different Compactive Energy
https://orcid.org/0000-0002-5106-4579
Abstract The resilient modulus ($${\text{M}}_{\text{r}}$$) of natural subgrade materials have been extensively studied, however, for stabilized subgrade materials, the $${\text{M}}_{\text{r}}$$ requires adequate characterization to ascertain pragmatic performance. Furthermore, the soil $${\text{M}}_{\text{r}}$$ is known to be influenced by the soil physical state. A lime-modified expansive subgrade soil, admixed with varying percentages of bamboo ash (4, 8, 12, 16, and 20%) was understudied to determine its $${\text{M}}_{\text{r}}$$ with compaction attenuation. Two compactive energies, British standard heavy and British standard light were applied for determination of the stabilized soil $${\text{M}}_{\text{r}}$$. The $${\text{M}}_{\text{r}}$$ was determined in accordance with AASHTO T307 guide. The results clearly showed that whilst $${\text{M}}_{\text{r}}$$ improved with additive content and increased deviator and confining stresses, the values diminished with compaction attenuation. A polynomial model relationship was developed for the $${\text{M}}_{\text{r}}$$ obtained using the two compactive energies. The results of the multiple regression analysis carried out using modified stress-based models from literature demonstrated the influence of compactive energy and additive content on the stabilized soil $${\text{M}}_{\text{r}}$$.
Resilient Modulus of Lime-Bamboo Ash Stabilized Subgrade Soil with Different Compactive Energy
https://orcid.org/0000-0002-5106-4579
Abstract The resilient modulus ($${\text{M}}_{\text{r}}$$) of natural subgrade materials have been extensively studied, however, for stabilized subgrade materials, the $${\text{M}}_{\text{r}}$$ requires adequate characterization to ascertain pragmatic performance. Furthermore, the soil $${\text{M}}_{\text{r}}$$ is known to be influenced by the soil physical state. A lime-modified expansive subgrade soil, admixed with varying percentages of bamboo ash (4, 8, 12, 16, and 20%) was understudied to determine its $${\text{M}}_{\text{r}}$$ with compaction attenuation. Two compactive energies, British standard heavy and British standard light were applied for determination of the stabilized soil $${\text{M}}_{\text{r}}$$. The $${\text{M}}_{\text{r}}$$ was determined in accordance with AASHTO T307 guide. The results clearly showed that whilst $${\text{M}}_{\text{r}}$$ improved with additive content and increased deviator and confining stresses, the values diminished with compaction attenuation. A polynomial model relationship was developed for the $${\text{M}}_{\text{r}}$$ obtained using the two compactive energies. The results of the multiple regression analysis carried out using modified stress-based models from literature demonstrated the influence of compactive energy and additive content on the stabilized soil $${\text{M}}_{\text{r}}$$.
Resilient Modulus of Lime-Bamboo Ash Stabilized Subgrade Soil with Different Compactive Energy
https://orcid.org/0000-0002-5106-4579
Abstract The resilient modulus ($${\text{M}}_{\text{r}}$$) of natural subgrade materials have been extensively studied, however, for stabilized subgrade materials, the $${\text{M}}_{\text{r}}$$ requires adequate characterization to ascertain pragmatic performance. Furthermore, the soil $${\text{M}}_{\text{r}}$$ is known to be influenced by the soil physical state. A lime-modified expansive subgrade soil, admixed with varying percentages of bamboo ash (4, 8, 12, 16, and 20%) was understudied to determine its $${\text{M}}_{\text{r}}$$ with compaction attenuation. Two compactive energies, British standard heavy and British standard light were applied for determination of the stabilized soil $${\text{M}}_{\text{r}}$$. The $${\text{M}}_{\text{r}}$$ was determined in accordance with AASHTO T307 guide. The results clearly showed that whilst $${\text{M}}_{\text{r}}$$ improved with additive content and increased deviator and confining stresses, the values diminished with compaction attenuation. A polynomial model relationship was developed for the $${\text{M}}_{\text{r}}$$ obtained using the two compactive energies. The results of the multiple regression analysis carried out using modified stress-based models from literature demonstrated the influence of compactive energy and additive content on the stabilized soil $${\text{M}}_{\text{r}}$$.
Resilient Modulus of Lime-Bamboo Ash Stabilized Subgrade Soil with Different Compactive Energy
Ikeagwuani, Chijioke Christopher (author) / Nwonu, Donald Chimobi (author)
2019
Article (Journal)
Electronic Resource
English
BKL:
57.00$jBergbau: Allgemeines
/
38.58
Geomechanik
/
57.00
Bergbau: Allgemeines
/
56.20
Ingenieurgeologie, Bodenmechanik
/
38.58$jGeomechanik
/
56.20$jIngenieurgeologie$jBodenmechanik
Resilient Modulus of Lime-Bamboo Ash Stabilized Subgrade Soil with Different Compactive Energy
| Online Contents | 2019
Laboratory Research on Resilient Modulus of Lime-Stabilized Soil
| British Library Conference Proceedings | 2014
| British Library Online Contents | 2015
Subgrade Resilient Modulus Evaluation
| NTIS | 1991