• Proceedings of the KOR-KST Conference
• /
• 2007.05a
• /
• pp.208-217
• /
• 2007

• Proceedings of the KOR-KST Conference
• /
• 2007.05a
• /
• pp.247-256
• /
• 2007

• Proceedings of the KOR-KST Conference
• /
• 2007.05a
• /
• pp.257-266
• /
• 2007

• Proceedings of the Korean Institute of Landscape Architecture Conference
• /
• 2012.03a
• /
• pp.89-92
• /
• 2012

• Magazine of the Korean Society of Hazard Mitigation
• /
• v.3 no.3 s.10
• /
• pp.48-59
• /
• 2003

• Proceedings of the Korean Institute of Landscape Architecture Conference
• /
• 2008.10a
• /
• pp.46-48
• /
• 2008

• Proceedings of the Korean Institute of Building Construction Conference
• /
• 2019.11a
• /
• pp.116-117
• /
• 2019

In this research, Proctor insertion resistance test values and Durometer A type hardness values were compared and analyzed between the setting times of the concrete using CGS for Fine Aggregate, and the results are summarized as follows. 1) The Proctor penetration resistance test value and the hardness value of Durometer A type showed a high correlation in the form of a curve. 2) About surface finish The resolution exceeding the hardness value of the Durometer A type uses about 25 HD, and in the case of termination, about 35 HD, and is considered to be effective for determining the surface finishing work time. The possibility to do is expected.

• Proceedings of the Korean Institute of Building Construction Conference
• /
• 2019.11a
• /
• pp.118-119
• /
• 2019

In this study, we compared the proctor penetration resistance test value of the concrete using CGS for Fine Aggregate and the hardness value of the Durometer. The results are summarized as follows. 1) Surface finish The Durometer C type setting time measurement value was about 45 HD, and the hardness value of the Durometer D type was about 5HD. 2) The proctor penetration resistance test value and the hardness value of the Durometer are highly correlated and are expected to be easy to use.

• Proceedings of the Korean Institute of Building Construction Conference
• /
• 2019.11a
• /
• pp.81-82
• /
• 2019

In this study, the Proctor penetration resistance test value and the hardness value of the improved Durometer were compared and analyzed for the change in the FA replacement rate of the concrete using CGS fine aggregate. The results are summarized as follows. It is. 1) The Proctor penetration resistance test value and the hardness value of the improved Durometer showed a high correlation in the form of a curve. 2) About surface finish Super-resolution with the improved Durometer is considered to be useful when using about 50 HD and about 80 HD in the end to determine the surface finishing work time.

• Proceedings of the Korean Institute of Building Construction Conference
• /
• 2020.06a
• /
• pp.134-135
• /
• 2020

In this study, optimum time of drilling for injection of repair material was determined through surface stripping and cracking investigation by drilling from the 1 days to the 3 days of the age for the specimens with ∅100 mm. No surface stripping and cracking occurred on the third day of age, and the compressive strength value was above 14 MPa, which resulted in the appropriate time for drilling on the third day of age.