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A platform for research: civil engineering, architecture and urbanism
Compression, Tension, and Fracture Energy Properties of Compressed Cement-Stabilized Earth Blocks
https://orcid.org/0000-0002-6447-1157
This paper presents the recent experimental findings related to mechanical properties of compressed cement-stabilized earth blocks (CSEBs), prepared using indigenous soil from Hamilton County in Nebraska (United States) and manufactured using a manual model of the CINVA-Ram soil brick compression machine. A total of 56 specimens were tested to allow for a meaningful statistical assessment of the results. First, uniaxial compression tests were performed on individual blocks utilizing two materials that allow for varying degrees of lateral expansion: plywood and rubber capping. Then, the flexural tensile strength and fracture energy parameters were obtained from three-point bending testing. Under compression, capped with plywood, the blocks had an average strength of 6.09MPa, whereas the blocks capped with rubber had an average strength of 4.22 MPa, presenting a 30% reduction in estimated compressive strength when the material has allowed greater lateral expansion. Moreover, flexural testing was conducted on notched blocks with a notch-to-depth ratio of 0.5. The average flexural tensile strength (modulus of rupture) of these specimens was obtained as 1.28 MPa with an average fracture energy value of 13.98 N/m. These material properties are key to numerical modeling and analysis of individual blocks constructed with these novel and special-recipe materials, which are not adequately reported in the literature. This technical note contributes to the state-of-the-art by providing the most recent findings of strength parameters for researchers to utilize in their studies.
Compression, Tension, and Fracture Energy Properties of Compressed Cement-Stabilized Earth Blocks
https://orcid.org/0000-0002-6447-1157
This paper presents the recent experimental findings related to mechanical properties of compressed cement-stabilized earth blocks (CSEBs), prepared using indigenous soil from Hamilton County in Nebraska (United States) and manufactured using a manual model of the CINVA-Ram soil brick compression machine. A total of 56 specimens were tested to allow for a meaningful statistical assessment of the results. First, uniaxial compression tests were performed on individual blocks utilizing two materials that allow for varying degrees of lateral expansion: plywood and rubber capping. Then, the flexural tensile strength and fracture energy parameters were obtained from three-point bending testing. Under compression, capped with plywood, the blocks had an average strength of 6.09MPa, whereas the blocks capped with rubber had an average strength of 4.22 MPa, presenting a 30% reduction in estimated compressive strength when the material has allowed greater lateral expansion. Moreover, flexural testing was conducted on notched blocks with a notch-to-depth ratio of 0.5. The average flexural tensile strength (modulus of rupture) of these specimens was obtained as 1.28 MPa with an average fracture energy value of 13.98 N/m. These material properties are key to numerical modeling and analysis of individual blocks constructed with these novel and special-recipe materials, which are not adequately reported in the literature. This technical note contributes to the state-of-the-art by providing the most recent findings of strength parameters for researchers to utilize in their studies.
Compression, Tension, and Fracture Energy Properties of Compressed Cement-Stabilized Earth Blocks
https://orcid.org/0000-0002-6447-1157
This paper presents the recent experimental findings related to mechanical properties of compressed cement-stabilized earth blocks (CSEBs), prepared using indigenous soil from Hamilton County in Nebraska (United States) and manufactured using a manual model of the CINVA-Ram soil brick compression machine. A total of 56 specimens were tested to allow for a meaningful statistical assessment of the results. First, uniaxial compression tests were performed on individual blocks utilizing two materials that allow for varying degrees of lateral expansion: plywood and rubber capping. Then, the flexural tensile strength and fracture energy parameters were obtained from three-point bending testing. Under compression, capped with plywood, the blocks had an average strength of 6.09MPa, whereas the blocks capped with rubber had an average strength of 4.22 MPa, presenting a 30% reduction in estimated compressive strength when the material has allowed greater lateral expansion. Moreover, flexural testing was conducted on notched blocks with a notch-to-depth ratio of 0.5. The average flexural tensile strength (modulus of rupture) of these specimens was obtained as 1.28 MPa with an average fracture energy value of 13.98 N/m. These material properties are key to numerical modeling and analysis of individual blocks constructed with these novel and special-recipe materials, which are not adequately reported in the literature. This technical note contributes to the state-of-the-art by providing the most recent findings of strength parameters for researchers to utilize in their studies.
Compression, Tension, and Fracture Energy Properties of Compressed Cement-Stabilized Earth Blocks
J. Archit. Eng.
Hall, Ethan (author) / Pulatsu, Bora (author) / Erdogmus, Ece (author) / Skourup, Brian (author)
2022-03-01
Article (Journal)
Electronic Resource
English
Characteristic Properties of Cement-Stabilized Rammed Earth Blocks
| Online Contents | 2015
Characteristic Properties of Cement-Stabilized Rammed Earth Blocks
| British Library Online Contents | 2015