Abstract:
본 발명은 유리섬유 복합 보강재료와 이를 이용한 아스팔트 혼합물 및 그 제조방법에 관한 것으로, 경제적이면서 우수한 물리적인 특성을 가지는 유리섬유 파분을 펠렛 또는 입자 형태로 한 파분 보강재와, 여러 가닥의 유리섬유를 폴리프로필렌 수지로 코팅하여 다발형으로 만든 섬유 보강재를 혼합한 구성으로 제작하여 가열 아스팔트혼합물에 첨가함으로써, 간편하게 현장 플랜트에서 투입이 가능하며, 생산된 가열 아스팔트 혼합물 내에서 섬유의 뭉침 현상을 방지하여 아스팔트의 성능을 개선할 수 있도록 한 것이다.
Abstract:
The present invention relates to lightweight waterproofing membranes for protecting buildings or bridges or the like. The lightweight waterproofing membrane is produced by coating a reinforcing material with a coating formulation comprising a bitumen and plasticizer blend, petroleum coke (pet- coke) and elastomeric block polymer and/or plastomeric polymer.
Abstract:
The mixture for the production of vibroinsulation materials to protect railways and roads for motor vehicles according to the invention consists of a rubber granules, preferably with granulation of about 1-10 mm, in quantity of 90 - 50% by weight and bituminous materials modified with thermoplastic, thermoelastoplastic polymers or rubbers in quantity of 10 - 30% by weight Modified bituminous materials operate as a binder of rubber granules. In addition, the mixture may contain modifiers in the form of mineral fillers, fabrics or resins in quantity of up to 30% by weight against the weight of the total mixture. granules made of used car tyres, waste tapes and / or belts or production waste are preferably used as rubber granules. Asphalt modified with thermoplastic, thermoelastoplastic polymers or rubbers is preferably used as a modified bituminous binder. Ethylene polymers or ethylene-propylene copolymers are preferably used as thermoplastic polymers. Block copolymers of styrene-butadiene-styrene, styrene-isoprene- styrene, styrene-ethylene/butylene-styrene, styrene-ethylene/propylene-styrene are used as thermoelastoplastic polymers. Polyester or basalt fibres, natural and synthetic resins, preferably rosin, high-styrene resin, mineral fillers of different granulation, preferably quartz are used as modifiers for improving mechanical properties, rheology and hardness.
Abstract:
Zur Lösung der Aufgabe, eine Masse zum Ausfüllen und Verfüllen von Fugen und/oder Rissen, vorzugsweise in horizontalen und/oder vertikalen Flächen, zur Verfügung zu stellen, welche vorteilhafte betreffend Haftung und Ähnliches aufweisen, wird eine solche Masse vorgeschlagen umfassend mindestens ein Bitumen in einer Menge in einem Bereich von etwa 30 Gew.-% bis etwa 75 Gew.-%; mindestens ein Elastomer, ausgewählt aus einer Gruppe umfassend Styrol-Butadien-Copolymere, Styrol-Butadien-Styrol-(Block-)Copolymere, Styrol-lsopren-(Block-)Copolymere und/oder Styrol-lsopren-Styrol-(Block-) Copolymere, synthetische und/oder natürliche Kautschuke, in einer Menge in einem Bereich von etwa 2,5 Gew.-% bis etwa 22 Gew.-%; mindestens einen pulverförmigen mineralischen Füllstoff in einer Menge in einem Bereich von etwa 12 Gew.-% bis etwa 35 Gew.-%; mindestens ein faserförmiges Stellmittel zur Einstellung der Festigkeit, ausgewählt aus einer Gruppe umfassend Zellulose, Glasfasern und/oder Kunststofffasern, in einer Menge in einem Bereich von etwa 0,5 Gew.-% bis etwa 5 Gew.-%; und mindestens ein Polymer, hergestellt aus einem Olefin und einer a, ß-ungesättigten Carbonsäure und/oder α, ß-ungesättigtem Carbonsäureanhydrid, in einer Menge in einem Bereich von etwa 0,1 Gew.-% bis etwa 8 Gew.-%, bevorzugt bis etwa 5 Gew.-%, wobei die Gewichtsprozente jeweils bezogen sind auf die Gesamtmenge der Masse.
Abstract:
A non-blown roofing grade bitumen composition comprising bitumen feedstock, polyolefin having a molecular weight of from about 800 to about 50,000 g/mol, and optionally one or more additives, wherein the softening point of the composition is above 70° C as determined according to method ASTM D36 and the penetration of the composition is at least about 12 dmm at 25°C as determined according to method ASTM D5. A method of making the same.
Abstract:
A process for rehabilitating used asphalt is provided. The process involves mixing the used asphalt with a novel rehabilitating agent comprising the mineral porcelanite, an activating agent and a polymer. The process restores the elastic properties of asphalt and provides a rejuvenated asphalt with superior stability relative to asphalt rejuvenated with traditional rejuvenating agents.
Abstract:
Plastomer-modified asphalt binders meeting MSCR specifications, asphalt paving materials with such asphalt binders, and methods for fabricating such asphalt binders are provided. The asphalt binder contains a base asphalt and a plastomer. If the plastomer has a drop point no greater than about 139C, the asphalt binder further contains sulfur; sulfurcontaining compounds, such as hydrocarbyl polysulfides and thiuram disulfides; phenolic resins; metal oxides; or a combination thereof. The asphalt binder is substantially free of elastomer.
Abstract:
Asphalt binder compositions are provided comprising asphalt and a polymer blend, wherein the polymer blend comprises oxidized high density polyethylene and another polymer chosen from: maleated polypropylene, polyethylene homopolymer, high crystallinity polyethylene, and combinations thereof. Also provided are paving and roofing materials comprising the aforesaid asphalt binder compositions and an aggregate material. Methods for making and using the asphalt binder compositions are also provided.
Abstract:
Methods for reducing asphalt pavement thickness, for fabricating asphalt paving material with increased aggregate-to-aggregate contact points, and for fabricating asphalt paving materials with improved low temperature cracking performance are provided. A method for reducing asphalt pavement thickness includes combining a base asphalt, an oxidized polyolefin, and an aggregate to form an asphalt paving material. A layer of the asphalt paving material is deposited on a substrate layer and compacted to a thickness that is less than a thickness of a compacted asphalt paving material formed of the aggregate and the base asphalt with no oxidized polyolefin while achieving the same amount or less of high temperature rutting than the compacted asphalt paving material formed of the aggregate and the base asphalt with no oxidized polyolefin.
Abstract:
Storage stable asphalt paving pellets that contain recycled asphalt shingle material and, optionally, RAP fines, ground tire rubber, and the like. Methods for making and utilizing the storage stable asphalt paving pellets are also disclosed. A typical pellet includes a core and an outer shell. The core may include recycled asphalt shingle material and an asphalt binder material (e.g., bitumen). The outer shell, which may include a number of different materials such as, but not limited to, mineral fines, ground plastic fines, clays, and the like, is configured to prevent the asphalt pellets from sticking to each other or to adjacent surfaces during storage. The storage stable asphalt paving pellets can be manufactured at a central facility and then stored at a job site, a warehouse, or the like until they are needed for the preparation of asphalt paving material.