Abstract:
본 발명은 보도에 포장되고, 지면과 마주하는 하면부, 외부로 노출되는 상면부 및 상기 하면부와 상면부 사이에 외곽을 이루는 측면부를 포함하는 블록으로서, 상기 블록은, 상기 측면부와 일체 또는 분리 가능하게 형성되어, 인접된 상기 각 블록을 서로 연결하는 결합부재;를 더 포함하고, 상기 결합부재는, 적어도 일 측면에 형성된 음각의 결합 홈과, 상기 결합 홈에 대응하는 형상의 결합체를 포함하여 구성된 것을 특징으로 하는 결합구조를 가지는 보도블록을 개시한다.
Abstract:
본발명은생분해성유기혼화재를이용한천연수경성석회모르타르조성물및 이의제조방법에관한것이다. 상기천연수경성석회모르타르에생분해성유기혼화재를적정량사용하면상기천연수경성석회모르타르의유동성(flow)이증가하여작업성이향상되는효과가있다. 또한, 상기생분해성유기혼화재를적정량사용하면상기천연수경성석회모르타르의응결특성및 강도특성이향상되어짧은양생시간에도 EU 규격에준하는 NHL 5의특성을보이는장점이있다.
Abstract:
An assembling apparatus of a retaining wall is provided to improve stability and assemblability by assembling blocks stably, to secure safety by draining off rainwater easily and resisting earth pressure after construction, to form an eco-bridge having the drainage function by securing the vegetation space of an ecosystem after construction and to obtain eco-friendly effect by growing plants, flowers, etc. in the space between an upper block and a lower block. An assembling apparatus of a retaining wall comprises: a lower block(10) formed in the shape of a rectangular parallelepiped, provided with a rectangular space(12) filled with soil inward and composed of primary and secondary lower blocks(14,15) assembled at the optimum length using a lower horizontal assembling member(20); and an upper block(30) formed in the shape of a rectangular parallelepiped, provided with a rectangular space(32) filled with soil inward, assembled on the primary and secondary lower blocks of the lower block at the optimum height using a vertical assembling member(40) and composed of primary and secondary upper blocks(34,35) assembled at the optimum length using an upper horizontal assembling member(50). The lower horizontal assembling member comprises a primary lower slope groove(22) and a primary lower slope projection(24) formed vertically in the center of the primary lower block, and a lower slope projection(26) and a lower slope groove(28) coupled to the primary lower slope groove and the primary lower slope projection of the primary lower block selectively; the vertical assembling member comprises lower slope projections(42,43,44) formed on the upper parts of the primary and secondary lower blocks at regular intervals, and slope coupling grooves(46,47,48) formed on the lower parts of the primary and secondary upper blocks to couple with the lower slope projections; and the upper horizontal assembling member comprises a primary upper slope groove(52) and a primary upper slope projection(54) formed vertically in the center of the primary upper block, and a secondary upper slope projection(56) and a secondary upper slope groove(58) coupled to the primary upper slope groove and the primary upper slope projection of the primary upper block selectively. In addition, a drainage member(60) is placed on the front and rear of the spaces of the lower block and the upper block respectively to keep earth pressure after construction and composed of a pair of vertical guide grooves(62,63) formed on the front and rear of the spaces, horizontal drain holes(65) penetrated the lower block and the upper block horizontally to be connected with a seating end of the vertical guide groove, and many drainpipes(68) placed on the seating end through the vertical guide grooves and corresponded to the horizontal drain holes.
Abstract:
PURPOSE: A heat-reflective paint is provided to decrease the surface temperature of a road pavement material by 7-15°C, and to obtain more than 70% of reflectivity in all sunlight wavelength areas. CONSTITUTION: A heat-reflective paint comprises a mixture of 30-50wt% room temperature-drying type acryl emulsion resin, 10-25wt% glass beads, 10-30wt% hollow ceramic, 10-30wt% colored inorganic pigment, 10-30wt% water, 1-5wt% surfactant, 1-5wt% thickening agent, 1-35wt% dispersant and 1-3wt% sedimentation agent. The glass beads is vacuum deposition-coated by aluminum or metal which has the thickness of 1-40 micron, on a glass of which refractive index is at least 2.2 or higher. The density of the hollow ceramic is 0.5-0.7g/cc, grain size is 15-65, the volume hollow rate is 20-60%.
Abstract:
PURPOSE: A road stud using a nut anchor is provided to simultaneously construct and install the road stud in a road by increasing bond strength. CONSTITUTION: A road stud(100) using a nut anchor comprises a body(101), reflectors(102), and a fastening groove(103). The body is formed in a trapezoidal shape. The reflectors are attached on both sides of the body. The fastening groove is formed on the top of the body. A fastening bolt(104) is inserted into the fastening groove. A nut anchor(110) fastens the road stud to a road. The nut anchor has a bolt fastener(112), splints(113), an anchor bar(114), protrusions(115), and a conical end(116). The bolt fastener is formed on the top of a cylindrical head(111). The splints are radially formed on the outer surface of the head. The anchor bar is formed in the bottom of the head. The protrusions are formed on the outer surface of the anchor bar. The conical end is formed in the bottom end of the anchor bar.