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
2016 한국구조물진단유지관리공학회 봄 학술발표 논문집 (2016년 4월) 312건
221.
2016.04
서비스 종료(열람 제한)
This research investigated the influence of adding hybrid steel fiber on the direct tensile behavior of UHPFRC(Ultra high performance fiber reinforced concrete). Test results revealed that the post cracking strength and peak toughness for the Lf: 20mm Df: 0.2mm_0.5% and Lf: 22mm Df: 0.22mm_1.0% were higher than incorporate with Lf: 20mm Df: 0.2mm_1.0% and Lf: 22mm Df: 0.22mm_0.5%
222.
2016.04
서비스 종료(열람 제한)
Recently, geopolymer binder or alkali-activated binder has been enormously studied as an alternative to portland cement. However, studies on heat resistance of geopolymers are still few, whereas studies on resistances against chemical attack and carbonation, and mechanical performance of geopolymer are being investigating. This paper aims to summarize a literature review on heat resistance of gel structure in geopolymers exposed to elevated temperature.
223.
2016.04
서비스 종료(열람 제한)
In this study is investigated nano-modified sulfur concrete carbonation resistance. Weight fraction of nano-modified sulfur are 0%, 3%, and 5% by cement's weight. The experiment result showed that there seem to be similarity in compressive strength according to weight fraction. and, the increase in nano-modified sulfur content enhanced concrete's carbonation resistance.
224.
2016.04
서비스 종료(열람 제한)
In order to estimate the influence of chloride de-icing materials which mainly cause the corrosion of steel structures, the salt spray test was conducted and the corrosion level of steel was investigated. The concentration of the chloride de-icing materials and the number of the spray were selected as variables, and the influence of chloride de-icing materials was estimated according to weight reduction of steel specimens.
225.
2016.04
서비스 종료(열람 제한)
The elastic modulus of high-strength steel fiber reinforced concrete was measured 37 GPa to 41.98 GPa. Comparing the difference value of the measured stress and the stress calculated by the regression analysis results were within ± 1 MPa. Measured data acorrding to applied LPF was more stable than unapplied LPF data. but, it was slightly different.
226.
2016.04
서비스 종료(열람 제한)
This study is to primarily investigate the consistency and compressive strength of an in-fill slurry of the SIFCON-based HPFRCC according to the mixing time. The mixing time considered were 10, 15 and 20 minutes.
227.
2016.04
서비스 종료(열람 제한)
In this paper, analyzed the effect on repair mortar by anhydrite blain, by observing workability.
228.
2016.04
서비스 종료(열람 제한)
The purpose of this study was to analyze the reduction of clamping force of TS (torque shear) bolted connection under fatigue loading. Generally, TS bolt has been totally tightened by torque shear wrench. However the plant structures experienced various fatigue loadings that makes reduction of clamping force of TS bolt. Therefore, this study conducted to the fatigue load test.
229.
2016.04
서비스 종료(열람 제한)
Chloride-based deicing materials have been reported as the major culprit behind degradation of performance of structures such as surface deterioration and steel corrosion, leading to active researches on development of eco-friendly deicing materials as countermeasures for such issues. However, these eco-friendly deicing materials suffer the issue of poor economic feasibility compared to existing chloride-based deicing material. In order to secure economic feasibility of eco-friendly deicing materials, this research has developed a new eco-friendly deicing material with calcium-based industrial byproducts and assessed its snow-removing performance.
230.
2016.04
서비스 종료(열람 제한)
This paper was examined the flexural performance of HPFRCC according to spraying stage. Through this, it will be utilized as basic research data for development of sprayed HPFRCC for protection and blast resistance of existing structures.
231.
2016.04
서비스 종료(열람 제한)
An experimental study was performed to examine the effect of fiber content on the tensile behavior of PE fiber reinforced cement composite. The experiment with the range 0~2.0% fiber content revealed that 1.5% fiber content produced the greatest tensile strength and strain.
232.
2016.04
서비스 종료(열람 제한)
Reinforced concrete hume pipes have been widely used as drain pipes. However, many reinforced concrete hume pipes are exposed to the deteriorated environments such as freezing-thawing damage, chemical attack and chloride ion immersion by using sea sand. The purpose of this study is to improve the durability of reinforced concrete hume pipe by using the polymer cement slurry(PCS)-coated rebar and treating the surface by polymer cement mortar(PCM). From the test results, it is apparent that PCS-coated rebar has a excellent resistance to chloride ion penetration and the PCM has good mechanical properties and durability as a lining material for reinforced concrete hume pipe product.
233.
2016.04
서비스 종료(열람 제한)
The objective of this study is the development of an artificial soil composition for vegetation in rock slope condition. In this study, the suitability of artificial soils added the cement-based materials is considered. The results show that the pH value of artificial soil added the micro cement was kept in the range of 7.86 to 8.00.
234.
2016.04
서비스 종료(열람 제한)
Along with the increased display devices, the supply for LCD waste glass has rapidly increased. However, there is a problem for recycling. In this study, the possibility of using LCD waste glass as a substitutive material of fine aggregate is determined and compared from the test of the compressive strength and split tensile strength. Finally, it is possible to confirm the results of the failure aspect and analysis of this test.
235.
2016.04
서비스 종료(열람 제한)
The purpose of study is to investigate properties of high strength concrete in fire. Composite fibers that are mixed in concrete are used to improve vulnerable point. The role of each fiber is to prevent of spalling effect and improve of flexural strength.
236.
2016.04
서비스 종료(열람 제한)
In this study, the uniaxial tensile tests were conducted to verify the difference of ductile behavior according to steel ratio of RC member. The tests were conducted on concrete compressive strength of 30MPa and SD400-D19 rebars. The steel ratio was classified with 0.59% and 2.87%. From the evaluation results based on limit state strain, both 0.59% steel ratio and 2.87% steel ratio were confirmed to exhibit more than 5% strain presented in korean highway bridge design code. But in case of 0.59% steel ratio, the decrease of limit state strain and failure strain was remarkably confirmed.
237.
2016.04
서비스 종료(열람 제한)
In this paper a method for measuring crack of RC members by using image analysis. Targets are attached on the surface of specimen equally in longitudinal and horizontal directions. Crack widths are measured by location of the detected targets on the images. The result compares crack patterns depending on steel ratio of the RC members. In members with high steel ratio, many additional cracks occurred after the initial crack and it reached the stabilized cracking stage. In members with low steel ratio, only one additional crack occurred after the initial crack and it was confirmed that the ductility capacity was lower in the members with low steel ratio than high steel ratio.
238.
2016.04
서비스 종료(열람 제한)
This paper presents an investigation of the mechanical properties on alkali-activated binders immersed in sea water. The alkali-activated binders were synthesized using blended binder(Class F fly ash; FA and ground granulated blast furnace slag; GGBFS) and alkali activator(sodium hydroxide and sodium silicate). Binders were prepared by mixing the FA and GGBFS in different blend ratios of 6:4, 7:3 and 8:2. The alkali activators were used 5wt% of blended binder, respectively. Calcium carbonate was used as an chemical additive. The compressive strength and absorptiion were measured at the age of 3, 7 and 28 days, and the XRD and SEM tests were performed at the age of 28 days.
239.
2016.04
서비스 종료(열람 제한)
This study is the adhesion strength of the sprayed metal in accordance with a proportion ratio of the Zn-Al. Results showed the most excellent adhesion strength for metal spraying Al100 For the metal spraying Zn100, ZnAl85, ZnAl95 exhibited a similar level of adhesion strength results.
240.
2016.04
서비스 종료(열람 제한)
Non-destructive test is using rebound hardness and ultrasonography generally. They generate a difference with Core compressive strength in estimation of compressive strength because they are indirectly. Therefor, Inter-rater Reliability analysis was performed to evaluate the reliability of Non-destructive Method. Reliability analysis, while there is correlation two times only between the rebound hardness method and Core compressive strength in total eight cases but ultrasonography method has six times. so ultrasonography method is more reliable than Rebound hardness method.
