• Title, Summary, Keyword: asphalt sealant

Search Result 12, Processing Time 0.03 seconds

Asphalt Sealant Containing the Waste Edible Oil (폐식용유를 이용한 아스팔트 실란트)

  • Kim, Seong-Jun
    • Elastomers and Composites
    • /
    • v.39 no.1
    • /
    • pp.61-70
    • /
    • 2004
  • This work is about the development or asphalt sealant using the waste edible oil. Asphalt sealant has been used for crack filler and bridge deck joint sealer Several plasticizers such as aromatic or paraffin process oils, DOP, Bunker C fuel oil, and waste edible oil were compounded with the basic components such as asphalt(AP-5), a thermoplastic elastomer(SBS triblock copolymer), a tackifying agent(petroleum resin), and stabilizers. Penetration, softening point, ductility, and elongation by tensile adhesion of those asphalt sealant compounds were measured. Their properties were changed largely depending on both the type and content of plasticizers. Waste edible oil and DOP were the best plasticizers for the low temperature tensile adhesion characteristics. Penetration and elongation by tensile adhesion of asphalt sealant compounds increased with the increase of waste edible oil content and decreased with the increase of talc content. The manufacture of asphalt sealant with low penetration and excellent low temperature tensile adhesion was possible by the recipe optimization.

Asphalt Sealant Containing the Waste Lubricant Oil (폐윤활유를 이용한 아스팔트 실란트)

  • Kim, Seog-Jun;Ko, Kum-Jin
    • Elastomers and Composites
    • /
    • v.44 no.1
    • /
    • pp.69-75
    • /
    • 2009
  • Asphalt sealants for the crack repair of asphalt concrete road were prepared using waste lubricant oil in this work. The waste lubricant oil was compounded with asphalt(AP-5), SBS triblock copolymer, a tackifying agent(petroleum resin), and antioxidants. Cone penetration, softening point, ductility, elongation by tensile adhesion, and resilience of asphalt sealant compounds were measured. Cone penetration of asphalt sealant compounds increased with the increase of waste lubricant oil content while their softening point, ductility, and resilience decreased. By the addition of talc as an extender, softening point and resilience of asphalt sealants increased, but cone penetration, ductility, and elongation by tensile adhesion of those decreased with the proportion of talc content. The most economic asphalt sealant which could pass an ASTM specification could be manufactured by the big decrement of petroleum resin content.

Confirmation on Basic Adhesion Strength Property Testing of Domestic Rubber Asphalt Waterproofing Sealant in Accordance JC/T 2428 Chinese Industrial Standard for the Establishment of Korea-China Joint Quality Standards (고무 아스팔트 씰의 한중 공동 품질기준 제정을 위하여 국내 재료를 중국업계표준 JC/T 2428의 부착강도 적용시 기본물성 확보 여부 확인)

  • An, Ki-Won;Oh, Sang-Keun
    • Proceedings of the Korean Institute of Building Construction Conference
    • /
    • /
    • pp.226-227
    • /
    • 2019
  • Installation and usage methods are currently different between China and Korea for the same rubber asphalt waterproofing sealant. Quality verification is not properly carried out in this situation, so it is necessary to secure reliability in order to export domestic materials to China. In this study, rubber asphalt waterproofing sealant used as injection-type leakage repair material was tested in accordance to adhesion strength quality test method outlined in the JC/T2428 Chinese Industrial Standard to confirm the basic performance is compliant or not.

  • PDF

A Study on the Properties and Manufacture of Vinylester Resin Mixtures Used as Sealant of Insulator (단열재의 실링재로 사용되는 비닐에스테르 수지 혼합물의 제조 및 물성에 관한 연구)

  • Suh, Won-Dong;Choi, Sang-Goo
    • Elastomers and Composites
    • /
    • v.27 no.3
    • /
    • pp.174-182
    • /
    • 1992
  • Main components of manufactured sealant were vinylester resin, polybutadiene rubber, asphalt and inorganic filler. For manufactured sealant, liquid and cure properties were tested experimantally. It showed better mechanical properties at rubber content $5{\sim}15phr$. Blown asphalt represented better properties than streight asphalt, showed the highest cohesive strength at asphalt content $6{\sim}8phr$. Appropriate usage of filler was $60{\pm}2%$ of total components, and $Al(OH)_3$ showed better flame-retardancy than $CaCO_3$.

  • PDF

Evaluation of Sealing Effect on Performance of Overlaid Asphalt Pavement using Accelerated Reflection Cracking Test in Shear Mode (덧씌우기 아스팔트 포장체의 전단반사균옅 모사시험을 이용한 줄눈 실링재의 반사균열 지연효과 비교분석)

  • Choi, Dong-Chon;Li, Xiang-Fan;Lee, Young-Gwan;Kim, Kwang-Woo
    • International Journal of Highway Engineering
    • /
    • v.5 no.3
    • /
    • pp.1-9
    • /
    • 2003
  • This study was performed to evaluate the effect of various joint sealant on reducing the reflection cracking of asphalt concrete overlay on cement concrete pavement. The test method used was an accelerated reflection cracking test in shear mode, which was developed for evaluation of reflection cracking resistance of overlaid asphalt concrete in laboratory. The test results showed that use of joint sealants resulted in a significant reduction of reflection cracking. When sealant E was used, the fatigue life was the highest, with relatively larger horizontal deformation. When Sealant B was used, the dynamic stability was the highest with the smallest horizontal deformation. In general, the greater the tensile strength of sealant, the better the crack resistance of the mixture.

  • PDF

A Study on Sealant Evaluation and Effectiveness of Saw and Seal Method for Reducing Reflection Cracking (반사균열 저감을 위한 Saw and Seal 공법의 줄눈재 평가 및 효과에 관한 연구)

  • Seo, Yong-Hwan;Suh, Young-Chan;Bae, Jong-Oh;Chon, Beom-Jun
    • International Journal of Highway Engineering
    • /
    • v.14 no.4
    • /
    • pp.73-81
    • /
    • 2012
  • PURPOSES : The purpose of this study is to select the proper sealing method and to see the performance of the saw and seal method for concrete rehabilitation based on accelerated pavement testings and lab tests. METHODS : Two accelerated pavement testings were conducted. One is to select proper sealing method of the asphalt joints and the other is to see the performance of the saw and seal method. Lab tests were conducted to select proper sealing method and a test section was constructed to see the field performance. RESULTS : The result of the first accelerated pavement testing indicated that the adhesive preformed sealants showed good performance when asphalt layer was rutted and in terms preventing from water infiltration. The second acceleration test indicated that the saw and seal method using the adhesive preformed sealant showed much better performance than the control. In the lab test bitumen, rubber and epoxy showed good performance as the adhesive. CONCLUSIONS : Saw and Seal method using the adhesive preformed sealant would markedly reduce the joint damage on the asphalt overlay.

Fundamental Study on Development of Sealants used for WIM Sensor Installation (WIM 센서 설치에 적합한 실런트 개발을 위한 기초적인 연구)

  • Lim, Chisoo;Kim, Du-Byung;Kim, Yongjoo;Lee, Kanghun;Lee, Jaejun
    • International Journal of Highway Engineering
    • /
    • v.19 no.2
    • /
    • pp.17-24
    • /
    • 2017
  • PURPOSES : This study aims to develop a sealant for use in the installation of Weigh-In-Motion (WIM) sensor for asphalt concrete or cement concrete pavements. METHODS : In order to investigate the properties of various sealants that were mixed with latex and carbon fiber, various test methods were adopted, such as bituminous bond strength test, softening point test, and cone penetration test. To evaluate moisture susceptibility, the BBS test was conducted under moist condition. The bond strength ratio (BSR) was calculated based on tensile strength ratio method. RESULTS : The sealant's properties significantly varied according to the amount of latex or carbon fiber. The usage of latex marginally enhanced the cone penetration test result, notwithstanding reduced asphalt content. This implies that the sealant will be proper cold temperature reason. Moreover, the addition of latex and carbon fiber evidently increased the softening point. This indicates that the tendency of the material to flow at elevated temperatures is encountered during service. With the addition of latex and carbon fiber, the moisture susceptibility measured with BSR improved marginally, while the bond strength under dry condition decreased marginally. Sealant F displays the highest bond strength and BSR under limited test conditions. CONCLUSIONS : According to the proportion of latex and carbon fiber mixed, properties of sealant, such as softening point, cone penetration, and BSR varied marginally. This indicates that the sealant has to be applied considering the environmental condition, to improve service life.

Evaluation of Adhesion Characteristics of Crack Sealants Used in Asphalt Concrete Pavement (아스팔트 콘크리트 포장용 균열실링재의 부착특성 평가)

  • Lee, Jae-Jun;Kim, Seung-Hoon;Baek, Jong-Eun;Lim, Jae-Kyu;Kim, Yong-Joo
    • International Journal of Highway Engineering
    • /
    • v.17 no.2
    • /
    • pp.55-62
    • /
    • 2015
  • Cracking is an inevitable fact of asphalt concrete pavements and plays a major role in pavement deterioration. Pavement cracking is one of the main factors determining the frequency and method of repair. Cracks can be treated with a number of preventative maintenance actions, including overlay surface treatments such as slurry sealing, crack sealing, or crack filling. Pavement cracks can show up as one or all of the following types: transverse, longitudinal, fatigue, block, reflective, edge, and slippage. Crack sealing is a frequently used pavement maintenance treatment because it significantly extends the pavement service life. However, crack sealant often fails prematurely due to a loss of adhesion. Because current test methods are mostly empirical and only provide a qualitative measure of the bond strength, they cannot accurately predict the adhesive failure of the sealant. This study introduces a laboratory test aimed at assessing the bonding of hot-poured crack sealant to the walls of pavement cracks. A pneumatic adhesion tensile testing instrument (PATTI) was adopted to measure the bonding strength of the hot-poured crack sealant as a function of the curing time and temperature. Based on a limited number of test results, the hot-poured crack sealants have very different bonding performances. Therefore, this test method can be proposed as part of a newly developed performance-based standard specification for hot-poured crack sealants for use in the future. PURPOSES : The purpose of this study was to evaluate both the adhesion and failure performance of a crack sealant as a function of its curing time and curing temperature. METHODS: A pneumatic adhesion tensile testing instrument (PATTI) was adopted to measure the adhesion performance of a crack sealant as a function of the curing time and curing temperature. RESULTS: With changes in the curing time, curing temperature, and sealant type, the bond strengths were found to be significantly different. Also, higher bond strengths were measured at lower temperatures. Different sealant types produced completely different bond strengths and failure behaviors. CONCLUSIONS: The bonding strength of an evaluated crack sealant was shown to differ depending on various factors. Two sealant types, which were composed of different raw materials, were shown to perform differently. The newly proposed test offers the possibility of evaluating and differentiating between different crack sealants. Based on alimited number of test results, this test method can be proposed as part of a newly developed performance-based standard specification for crack sealants or as part of a guideline for the selection of hot-poured crack sealant in the future.

Ashpalt 2 Component Adhesive Leakage Repair Sealant Evaluation (아스팔트 2액형 점착재의 누수보수 평가에 관한 연구)

  • Cho, Il-Kyu;Kim, Keun-Hur;Oh, Sang-Keun
    • Proceedings of the Korean Institute of Building Construction Conference
    • /
    • /
    • pp.140-141
    • /
    • 2017
  • This study is based on the evaluation of a single component injection type adhesive repair material and a new 2 component type used in leakage of underground concrete structures. The studies showed that based on different mix ratio of the 2 component type adhesive sealant comprised of an asphalt main and latex mixture agent the viscosity of the material compound differed significantly. Based on a permeability testing, injection and economic efficiency, and performance, the appropriate ratio was determined to be 6:1 and was proceeded to the KS F 4935 evaluation method. The 2 component type adhesive sealant uses a static mixer and a cartridge type container for the injection procedure and was able to satisfy the evaluation criteria outlined in the KS F 4935 standard.

  • PDF

Influence of a Flexibilizer on Physical Properties of Crumb Rubber Modified Asphalt Sealants (폐타이어 고무분말 개질 아스팔트 실란트의 물리적 특성에서 유연제의 영향)

  • Kim, Jong-Seok
    • International Journal of Highway Engineering
    • /
    • v.11 no.3
    • /
    • pp.33-40
    • /
    • 2009
  • The use of the crumb rubber as an asphalt binder modifier may contribute to road maintenance and repair. The adhesion properties of the crumb rubber modified asphalt (CRMA) sealant have attracted interest due to brittle and adhesion failure of asphalt binders at low temperatures. In this study, the influence of a flexibilizer as a modifier for CRMA at low temperatures was investigated. Their properties were measured using the penetration, the softening point, the tensile and tensile adhesion tests at low temperature. The tensile adhesion strength and the strain of CRMAs were increased with increasing ductile deformation of the CR and the asphalt binder in the flexiblizer modified CRMAs. It was found that the flexibilizer concentration was an important factor for tensile and adhesion properties of CRMAs at low temperatures.

  • PDF