Compression Test Lab Report
Fig. (3.12): Cylinders after being removed from the molds and curing
Fig. (3.13): Cubes after being removed from the molds and curing Fig. (3.14): Prisms after being removed from the molds and curing
3.5.7. Preparation of specimen's surface:
The specimen's surface is important since it has variable influences on mechanical properties. So the specimens were prepared to have a smooth and parallel bearing surface. These specimens were perpendicular to the axial load during all the tests, as shown in Fig. (3.15) and (3.16). Fig. (3.15): Preparation of cube specimens Fig. (3.16): Preparation of cylinder specimens
3.6. Test procedure:
This section highlights the procedures used for testing the FBLWC specimens EXPosed to compression …show more content…
(3.17): The weighting of specimens
3.6.2. Fcu test:
A compression test is a method for determining the behavior of materials under a compressive load. The fcu of Conc. is one of the factors which controls the loads and may be applied to a Conc. structure. Fcu of any Conc. is an important parameter in construction and design.
in this test, a standard test load was applied parallelly between two plates to the long-itudinal axis of a properly cured Conc. cube or cylinder of a standard size, and then applying a force to the specimen by moving the crossheads together. When the tests properly conducted, a max. load was obtained at the point at which the cylinder and cubes ruptured. With this maximum load, the fcu could be easily calculated. The equipment used in the test was a compression-testing machine matching the requirements of the standard specifications (ISo 4012) or (BS 1881: part 115). The fcu conducted for Conc. could be calculated using the following eq. (3.2): fc = P /A …show more content…
(3.29): Splitting tensile test on Conc. cube specimens
3.6.6. Tension stiffening test:
Tension stiffening tests had been carried out on specimens, as shown in Fig. (3.30). one steel bar of 12, 16 and 18 mm in diameter was used as the reinforcing bar in the middle. Crushing test on the Conc. sample was conducted earlier to identify the fcu and the Young's modulus of foam balls lightweight Conc.. Fig. (3.30): FBLWC specimens for direct tension test
Specimens were loaded vertically through one-axial tension rod, as shown in Fig. (3.31). At each load stage, the ԑs were measured by ԑ gauges. The complete response of each specimen was described by plotting the applied tension against the average ԑ of three members. The loading rate was maintained by gently tapping the loading lever. Ԑ measurements were obtained at increments of 2 kN for the steel bar 12 mm. The steel bar 16 mm specimens' were obtained at increments of 4 kN and the steel bar 18 mm specimens were obtained at 5 kN till
Fig. (3.13): Cubes after being removed from the molds and curing Fig. (3.14): Prisms after being removed from the molds and curing
3.5.7. Preparation of specimen's surface:
The specimen's surface is important since it has variable influences on mechanical properties. So the specimens were prepared to have a smooth and parallel bearing surface. These specimens were perpendicular to the axial load during all the tests, as shown in Fig. (3.15) and (3.16). Fig. (3.15): Preparation of cube specimens Fig. (3.16): Preparation of cylinder specimens
3.6. Test procedure:
This section highlights the procedures used for testing the FBLWC specimens EXPosed to compression …show more content…
(3.17): The weighting of specimens
3.6.2. Fcu test:
A compression test is a method for determining the behavior of materials under a compressive load. The fcu of Conc. is one of the factors which controls the loads and may be applied to a Conc. structure. Fcu of any Conc. is an important parameter in construction and design.
in this test, a standard test load was applied parallelly between two plates to the long-itudinal axis of a properly cured Conc. cube or cylinder of a standard size, and then applying a force to the specimen by moving the crossheads together. When the tests properly conducted, a max. load was obtained at the point at which the cylinder and cubes ruptured. With this maximum load, the fcu could be easily calculated. The equipment used in the test was a compression-testing machine matching the requirements of the standard specifications (ISo 4012) or (BS 1881: part 115). The fcu conducted for Conc. could be calculated using the following eq. (3.2): fc = P /A …show more content…
(3.29): Splitting tensile test on Conc. cube specimens
3.6.6. Tension stiffening test:
Tension stiffening tests had been carried out on specimens, as shown in Fig. (3.30). one steel bar of 12, 16 and 18 mm in diameter was used as the reinforcing bar in the middle. Crushing test on the Conc. sample was conducted earlier to identify the fcu and the Young's modulus of foam balls lightweight Conc.. Fig. (3.30): FBLWC specimens for direct tension test
Specimens were loaded vertically through one-axial tension rod, as shown in Fig. (3.31). At each load stage, the ԑs were measured by ԑ gauges. The complete response of each specimen was described by plotting the applied tension against the average ԑ of three members. The loading rate was maintained by gently tapping the loading lever. Ԑ measurements were obtained at increments of 2 kN for the steel bar 12 mm. The steel bar 16 mm specimens' were obtained at increments of 4 kN and the steel bar 18 mm specimens were obtained at 5 kN till