Asphalt modifier packages and rubber-modified asphalts including the packages are described. Asphalt modifier packages can include an amine functionalized wax and an elastomeric polymer in conjunction with ground tire rubber. Asphalt modifiers can include a ground tire rubber compounded with a reactive elastomeric terpolymer. Rubber-modified asphalts can exhibit an excellent stability of the ground tire rubber additive. Rubber-modified asphalts can exhibit a storage stability separation factor of about 6° F. or less, an MSCR J.sub.nr value of from about 0.05 to about 2 at 3.2 kPa and 67° C., and an MSCR percent recovery of from about 20% to about 75% at 3.2 kPa and 67° C.

An embodiment of a rail switch heating system is disclosed, including a controller comprising a processor and memory, an electrically resistive heating element coupled to the controller, the heating element configured for mounting to and heating a railroad rail, and software stored on the memory for executing the steps of: (a) automatically determining a pulse width modulated (PWM) cycle corresponding to a target energy consumption for cycling the heating element on and off; and (b) cycling the heating element on and off according to the PWM cycle.

The present invention provides a long-term mooring device. A support frame is provided on a dock. The dock is provided with a free guide roller. The free guide roller is wound with a cable. An upper end of the cable is horizontally connected to a spring fixed on a lower side of a cross arm of the support frame, through a free guide roller provided on the lower side of the cross arm of the support frame (corresponding to the free guide roller on the dock). The middle of the cable penetrates through an inertial induction self-locking connection joint fixed on an end of a platform arm. The platform arm is fixed on a platform. The present invention provides an omnidirectional restoring force for the moored platform through the elastic deformation of the springs to control the movement response of the platform within a certain range.

Amines and amine derivatives that improve the buffering range, and/or reduce the chelation and other negative interactions of the buffer and the system to be buffered. The reaction of amines or polyamines with various molecules to form polyamines with differing pKa's will extend the buffering range, derivatives that result in polyamines that have the same pKa yields a greater buffering capacity. Derivatives that result in zwitterionic buffers improve yield by allowing a greater range of stability.

Amines and amine derivatives that improve the buffering range, and/or reduce the chelation and other negative interactions of the buffer and the system to be buffered. The reaction of amines or polyamines with various molecules to form polyamines with differing pKa's will extend the buffering range, derivatives that result in polyamines that have the same pKa yields a greater buffering capacity. Derivatives that result in zwitterionic buffers improve yield by allowing a greater range of stability.

Various embodiments of a system for monitoring drainage of a permeable pavement system are provided as well as various exemplary installation scenarios. In particular, embodiments of a permeable (or pervious) pavement management platform are disclosed herein. In embodiments, the pavement management platform provides a service that allows the user to determine vacuum maintenance needs for permeable (or pervious) pavement systems. Advantages of the platform include: subscription-based asset management platform as a service (PaaS), customized off-the-shelf water-level sensors, off-the-shelf tipping-bucket rain gauge, observation well installation consistent with industry standards, can be implemented in residential, commercial, municipal, county, and state systems, lithium-ion battery powered sensor, LoRA sensor to hub data transmission network, cellular data transmission from hub, electrical power for cellular data transmission hub (can be solar panel powered), real-time dashboarding of surface runoff storage, real-time dashboarding of ground water recharge rate, and permeability (clogging) threshold alerts, among others.

An asphalt composition comprising 0.1 to 8 wt.-% based on the total weight of the composition of an Isocyanate as thermosetting reactive compound and 0.1 to 8 wt.-% based on the total weight of the composition of a plasticizer selected from the group consisting of orthophthalates, terephthalates, cyclohexanoates, azelates, actetates, butyrates, valeriates, alkylsulfonates, adipates, benzoates, dibenzoates, citrates, maleates, phosphates, sebacates, sulfonamides, epoxy es-ters, trimellitates, glycerol esters, succinates, mineral oils and polymeric plasticizers or mixtures thereof, wherein the polymeric plasticizer is selected from the group consisting of Hexanedioic acid polymer with 2,2-dimethyl-1,3-propanediol and 1,2-propanediol isononyl ester, Hexanedioic acid polymer with 1,2-propanediol octyl ester and Hexanedioic acid polymer with 1,2-propanediol acetate or mixtures thereof.

The present invention relates to a method for reducing the emission of hydrogen sulfide during the production of an asphalt composition.

Asphalt binders and bituminous compositions comprising oligomeric additives such as alkoxysilane oligomers compounds. In certain embodiments the oligomeric compounds may be useful as adhesion promoters for use with asphaltic bitumens and aggregates in road paving applications.

Reinforcing filaments or fibers, such as aromatic polyamide (aramid) fibers, can be reliably measured and consistently mixed into asphalt cement concrete by soaking the fibers in a wetting agent, then severing them to a desired length, and mixing the segments with other ACC ingredients. The wetting agent holds the fibers together loosely, so they can be distributed more uniformly throughout the ACC without clumping. The wetting agent soaks into the ACC mixture and/or evaporates, leaving the reinforcing fibers behind.