Abstract:
A joint structure of a bridge is provided to have excellent trafficability by having almost no impact, vibration and noise, to have excellent waterproofing performance, to facilitate construction and maintenance, to be less expensive, and to prevent early-stage damage by distributing the stress caused by expansion evenly to a peripheral structure. A joint structure of a bridge comprises two slabs(10a,10b) installed at a certain distance in the horizontal direction, a lattice member(100) formed to have two ends coupled to the two slabs and to have a deep part make expansion behavior in the horizontal direction, and elastic member(20) installed to the upper part of the lattice member, and a pavement(30) installed to the upper part of the two slabs as two sides of the elastic member.
Abstract:
A heat intercepting road pavement method is provided to facilitate maintenance by completing construction by the paint and the coating of the hollow material. A heat intercepting road pavement method is composed of a step for forming a first coated layer(100) by coating the mixed material on a road pavement(10) after mixing hollow ceramics having small sized particles and paint, and a step for forming a second coated layer(200) by coating hollow ceramics having middle sized particles. The hollow ceramics having small sized particles have particles formed at the size less than 30micrometers, and the hollow ceramics having middle sized particles have particles formed at the size of 80-100micrometers. The thickness of the first coated layer is 0.5mm or less, and the thickness of the second coated layer is 1mm or less.
Abstract:
A simulator for noise between pavement and tire is provided to make a friction between tire and pavement specimens as in the actual driving of vehicle by using plate type specimens. A simulator for noise between pavement and tire comprises a tire(2), a tire support unit(10) which supports the tire to be rotatable, a pavement specimen(4) contacting with the tire, a specimen support unit(20) which supports the pavement specimen so that the pavement specimen rotates about the axis perpendicular to the rotation axis of the tire, and a drive unit rotating one of the tire and pavement specimens.
Abstract:
An evaluation method of sealant condition number of the road pavement provides the road pavement which efficiently performs the repairing road task. An evaluation method of sealant condition number of road pavement comprises following steps: an unit section dividing step dividing the subjected object section of the repair of the road pavement into a plurality of unit section; a sealant condition number inspection step inspecting the damaged sealant condition number of each unit section; a damage rate computation step computing the sealant condition number damage rate within each unit section; a class granting step giving the class to each unit section based on the calculated sealant condition number damage rate; a sealant condition number computing step computing the sealant condition number of each object section.
Abstract:
본 발명은 드레인다운 방지 건식 아스팔트 개질제 조성물 및 이를 함유한 개질 아스팔트에 관한 것으로서, 더욱 상세하게는 스티렌-부타디엔-스티렌 블록 공중합체, 점착성 부여 수지, 프로세스 오일 및 셀룰로오스 섬유를 포함하는 건식 아스팔트 개질제 및 이를 함유한 개질 아스팔트에 관한 것이다. 본 발명의 건식 아스팔트 개질제를 사용하면 셀룰로오스 섬유가 아스팔트를 흡수하여 아스팔트가 골재에서 흘러내리는 드레인다운 현상이 억제되고 아스팔트 콘크리트 제조시 개질제의 분산 속도가 증가되어 향상된 품질의 아스팔트 콘크리트를 생산할 수 있으며, 건식 아스팔트 개질제를 함유하는 개질 아스팔트는 건식타입의 아스팔트 콘크리트의 제조, 배수성 아스팔트 포장 공법, 쇄석 매스틱 아스팔트 포장 공법 등에 유용하게 적용할 수 있다.
Abstract:
PURPOSE: The manufacturing method of a tie bar is provided to reduce cost, prevent corrosion, and increase the durability of a road pavement. CONSTITUTION: The manufacturing method of a tie bar comprises the following processes. A synthetic fiber(121) is wrapped on the outer surface of the core body(110) of a tie bar(100), and forms a projection(120). A core body is dipped in a water tank(10) filled with adhesive(11). A core body is pulled out from the water tank and is dried.
Abstract:
본 발명은, 좌우방향으로 상호 이격되어 설치된 양측의 슬랩(10a,10b); 양단이 상기 양측의 슬랩(10a,10b)에 결합하고, 심부가 좌우방향으로 신축 거동이 가능하도록 형성된 격자형 부재(100); 격자형 부재(100)의 상부에 설치된 탄성 부재(20); 탄성 부재(20)의 양측으로서, 양측의 슬랩(10a,10b)의 상부에 설치된 포장체(30);를 포함하는 교량의 조인트 구조물을 제시함으로써, 충격, 진동, 소음이 거의 없어 주행성이 양호하고, 방수성능이 우수하며, 시공과 유지보수가 쉽고, 비용이 저렴하면서도, 신축에 의한 응력을 주변 구조에 고루 분포시킴으로써 조기파손의 발생을 방지할 수 있도록 한다. 교량, 신축, 조인트
Abstract:
본 발명은 시멘트, 잔골재, 굵은골재를 포함하는 골재노출 도로포장용 콘크리트 조성물에 관한 것으로서, 굵은골재 중, 입도 9.5 ~ 13.2 mm인 굵은골재는 입도 2.36 ~ 4.75 mm인 굵은골재에 비해 많은 양이 포함된 것을 특징으로 하는 골재노출 도로포장용 콘크리트 조성물을 제시함으로써, 많은 수의 굵은골재가 높은 부착 강도를 가지고 포장 표면에 노출되도록 하여, 우수한 품질의 골재노출 콘크리트 도로포장 구조물을 얻을 수 있도록 한다. 콘크리트, 포장, 골재노출, 배합