간행물
한국구조물진단유지관리공학회 학술발표대회 논문집
- 발행기관 한국구조물진단유지관리공학회
- 자료유형 학술대회
- 간기 반년간
- 수록기간 2012 ~ 2019
- 주제분류 공학 > 안전공학 공학 분류의 다른 간행물
- 십진분류KDC 531DDC 624
권호리스트/논문검색
2012 한국구조물진단유지관리공학회 가을 학술발표 논문집 (2012년 11월) 174건
3분과 재료 및 내구성
121.
2012.11
서비스 종료(열람 제한)
Concrete has been considered as a semi-permanent structural material in construction industry. However, durability of concrete member is affected by carbonation, chloride attack, and water, etc. This study discusses the cause of deteriorated RC structure of storage house for de-icing salts.
122.
2012.11
서비스 종료(열람 제한)
In this study, specimens were produced to reach design standard strengths 40, 50 and 60MPa on age 28 days to evaluate the usability of high strength recycled aggregate concrete and the applicability of compressive strength by Impact Echo method and numerical analysis, and after 0, 30, 50 and 100% recycled coarse aggregates were substituted and mixed into each combination, totally 12 combinations were set. And, through compressive strength test, Impact Echo method, shock reverberation technique and numerical analysis on 1, 3, 7 and 28 days of age
123.
2012.11
서비스 종료(열람 제한)
This study is to evaluate performance of two-way acting insulated sandwich wall panels through flexural experiment. The two-way acting panel resists wind loading on the panel and on the window. In this study, GFRP(Glass Fiber-Reinforced Polymer) Grid-type shear connectors are used for the composite action of the sandwich wall panels. Layouts of shear connector are considered as main parameter of this experimental study.
124.
2012.11
서비스 종료(열람 제한)
This study investigates the effect of surface coating materials on the level of resistance of concrete carbonation. For the surface coating materials, paint (Pa), waste cooking oil (WCO) and waste cooking oil + paint (WCO + Pa) were prepared and applied on the surface of concrete specimens after exposure to accelerated carbonation environment for four weeks.
125.
2012.11
서비스 종료(열람 제한)
When RC members are subjected to chemical attack such as aggressive substances, the surfaces of member are seriously degraded. In this paper, an experimental study is executed to investigate the characteristics of flexural behavior of surface degraded reinforced concrete member. According to results, it is seemed that the surface degradation affect the load capacity, fracture energy, neutral axis depth and rigidity of RC members.
126.
2012.11
서비스 종료(열람 제한)
To promote applicability of steel bridge coating diagnosing system developed and used by Korea Expressway Corporation, problems found in deterioration degree evaluation standard for steel bridge coatings were revised in this study. Suitability of revised evaluation standard was confirmed by field survey.
127.
2012.11
서비스 종료(열람 제한)
Comparison of compressive strengths of carbon nanotubes-cement composites with different surfactants
In spite of advantages of the use of CNT, one of the largest obstacles to improve strength of CNT composites is the difficulty of getting a good dispersion of the carbon nanomaterials in a matrix. We tried to mix CNT composites with some of surfactant for getting a good dispersion and compared the results of compressive strength test.
128.
2012.11
서비스 종료(열람 제한)
This research was performed to evaluate physical properties of polysulfide epoxy overlay material for bridge deck, as part of a review for possibility of domestic of epoxy polymer concrete binder for thin bridge deck pavements. After mix test, carry out experiment such as harden, viscosity, tensile, compressive strength and Ultraviolet ray test for evaluate strength and durability characteristics. The tests showed that the results, met the criteria suggested by the ACI in hardness, viscosity, tensile strength and compressive strength. Furthemore, a comparsion of the in this study and goods of Transpo.co in USA, this study were excellent.
129.
2012.11
서비스 종료(열람 제한)
As Concrete is construction materials which is unevenly mixed with cement, aggregate and water, compressive strength and modulus of elasticity is an important factor to seize movement of structures. The purpose of this study is to investigate a correlation compressive strength and modulus of elasticity according to the size of structures, and also to analyze and compare to prediction equation of many countries.
130.
2012.11
서비스 종료(열람 제한)
In this study, KS F 2438 was used to investigated the modulus of elasticity of high performance concrete (HPC) of replacement fly ash, and test results were compared with existing equations. Korea, America and Japan have to use cylinder specimens by KCI(2011). However, in this study was used cubic specimens and the experimental variable of this study is size of cubic specimens.
131.
2012.11
서비스 종료(열람 제한)
In this study, we evaluated the long-term properties of long-tern pontoon concrete which has excellent mechanical properties and CO2 reduction effect. The low-carbon pontoon concrete was substituted unit weight of cement partly with ground granulated blast furnace slag to secure the durability and eco-friendly. As a result, the low-carbon pontoon concrete was better long-term properties than plain concrete.
132.
2012.11
서비스 종료(열람 제한)
This study investigated the effect of surface water on concrete substrate on adhesive strength in tension of very high flowable SBR-modified cement mortar. Polymer cement ratio(P/C) were 10, 20, 30, 50 and 75% and the weight ratio of fine aggregate to cement were 1:1 and 1:3. The specimens obtained with different P/C and C:F were characterized by unit weight, flow test, crack resistance and adhesion test. Three selected specimens among these tested specimens were studied about the effect of surface water evenly sprayed on concrete substrate on adhesive strength.
133.
2012.11
서비스 종료(열람 제한)
The objective of this study is to investigate the elasticity of high performance concrete replacement blast furnace slag. Experimental variables of this study are modulus(100×100mm, 150×150mm). And test results were compared with existing equations.
134.
2012.11
서비스 종료(열람 제한)
This paper reports test to assess the influence of water/solid on the compressive strength of fly ash based alkali activated concrete. According to test results, the strength is influenced by the waste/solid. Also, the appropriate Ms(SiO2/Na2O) rate is thought to be 1.0.
135.
2012.11
서비스 종료(열람 제한)
To evaluate the strength properties of concrete using low-absorption lightweight aggregate, this paper was compared low-absorption and foreign-made lightweight aggregate by test of slump, air content, elapsed time of slump, compressive and tensile strength.
136.
2012.11
서비스 종료(열람 제한)
This paper presents the experimental results for durability of an NaOH designed with blast furnace slag through the test method of chloride ion resistance and freezing-thawing resistance, Carbonation. In order to compare with NaOH, normal concrete was also tested. Test results showed that NaOH exhibited lower durability performance than ordinary mortar.
137.
2012.11
서비스 종료(열람 제한)
This study was performed an evaluation of Mechanical Properties of double layered concrete. As the results of study, When considering the bond strength of double layered concrete, the proper slump of normal concrete is thought to be 12cm. Also, compressive and flexural strength of double layered concrete is better than when only porous concrete is composed.
138.
2012.11
서비스 종료(열람 제한)
In this study, the hydration heat and chloride migration properties of marine concrete with respect to the water-binder ratio and binder type are investigated experimentally. According to research results, TBC(Ternary Blended Cement) applied marine concrete has a large water-binder ratio, the heat of hydration was found to be reduced and the chloride ion diffusion coefficient was small.
139.
2012.11
서비스 종료(열람 제한)
In this study, it was developed eco-friendly geopolymer fiber reinforced concrete using ground granulated blast furnace slag and alkali activator(water glass, sodium hydroxides). The purpose of this study is to evaluate the performance of eco-friendly geopolymer fiber reinforced concrete by performing compression tests and absorption tests.
140.
2012.11
서비스 종료(열람 제한)
Bridge Deck Waterproof has good constructability and economic efficiency, and it does not have any influence on following processes. But it is uncertain at concrete penetration performance. This paper were investigated pore characteristics in order to examine the performance of the domestic Bridge deck waterproof
