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RFI Construction Products SPN1000 and RSP500
The SPN1000 1-inch rotary nozzle and RSP500 rotor stator pump from RFI Construction Products provide air motor power for manhole rehabilitation with specialty fine-grain, pumpable mortars. The high speed of the SPN1000 nozzle atomizes the material for a smooth finish that requires very little hand troweling. The RSP500 uses a 1L3 rotor/stator (3 gpm output) to deliver the material to the rotary nozzle. It is controlled by a single hand valve for both forward and reverse operation. The pump is easily disassembled for cleanup. Air requirements for the two units are 475 cfm at 90 psi. 631-752-8899; www.rficonstructionproducts.com.
Chemical Grout
Avanti International injection grouts
Infiltration enters underground systems every day through defects or faulty joints in manholes, causing system capacity issues, overload at treatment plants and possible injury to the community. Avanti International injection grouts have historically proven to be an economic and long-term solution to combatting infiltration entering all areas of a collections system, including manholes. Injection grouts are engineered to stop leaks, stabilize soil and control groundwater, and can be used in pre-cast barrel joints, brick and concrete masonry units, pipe penetrations, vertical or horizontal cracks, void fill and pinholes. Each technique enables the technician to stop several leaks at once and helps to extend the life of the structure. 800-877-2570; www.avantigrout.com.
Epoxies
Epoxytec CPP Sprayliner MH
CPP Sprayliner MH from Epoxytec is designed to rehabilitate sanitary sewer collections system assets and other underground, cylindrical and/or small box structures in contact with hydrogen sulfide and in need of I&I mitigation with sealed lining. It performs in areas subject to chemical attack and, as a seal preventing oxidation while holding back water migration, I&I and hydrostatic pressure. The material can be sprayed ultra-high-build, up to 1/4 inch per pass. Blended with reinforcing agents and various fibers, the material when cured creates reinforcement lining as a fiber-reinforced polymer, with high-strength and flexural properties for partially or fully deteriorated structures. 877-463-7699; www.epoxytec.com.
Infrastructure Repair Systems Infragard
Infragard concrete and manhole rehabilitation products from Infrastructure Repair Systems include Top Coat and Chim-Coat, which are nonhazardous ambient-cure epoxy systems for a small patch, entire manhole or retaining wall. This cost-effective solution requires no expensive equipment, as it has an easy trowel-on application. They are corrosion resistant and high strength, with an impermeable structural bond to the substrate or to almost any concrete or metal surface. Chim-Coat is engineered with a flexible feature that maintains adhesion while expanding or contracting with changing temperatures and traffic loads. 877-327-4216; www.irsi.net.
Picote Solutions Dual-Color Epoxy Brush Coating System
The Dual-Color Epoxy Brush Coating System from Picote Solutions allows technicians to rehabilitate pipes from 1.25 to 12 inches for drains, sewers, water pipes, electrical conduits and heat and air-conditioning ducts by brush-casting a coating. The coating resin forms a pipe inside the original pipe that is tested, safe and environmentally friendly. The new pipe is damp-proof, corrosion-resistant and wear-resistant. It is ASTM and NSF certified (NSF/ANSI 61-5). It is a 100% solids epoxy, and the method allows for clear visual verification during the application process. Apply to small areas or all drains in multistory buildings. The system is practical and easily fits in tight places. 219-440-1404; www.picotesolutions.com.
Pipe Lining Supply Quik-Pox
Pipe Lining Supply offers several different Quik-Pox working/curing time hardeners to work with a single epoxy base. Quik-Pox 15 has an adjustable work time between 10 and 50 minutes. The cure time is adjustable between 30 minutes and five hours depending on whether the crew is using ambient curing temperatures or assisting the curing with heat. Quik-Pox 30 resin has an adjustable work time of 20 minutes to two hours with a cure time, again adjustable, between 45 minutes and seven hours. Quik-Pox 60 resin features adjustable work times from 30 to 180 minutes. The cure times are adjustable between 60 minutes to 11 hours. The operator can mix any or all hardeners together to create custom work/cure schedules. These features give the installer a flexible option regarding the work times and ability to adjust those to the pipe diameters, pipe lengths, and job-specific restrictions such as access and other conditions. 888-354-6464; www.pipeliningsupply.com.
Insert
Sealing Systems Manhole Insert
The strong, durable Manhole Insert from Sealing Systems can help stop unwanted inflow of rainwater through the manhole cover. Manhole cover inserts are custom-sized to provide an enhanced fit and seal, and are manufactured from ultra-high-density polyethylene or 16 gauge 304 stainless steel. They are simple to install with in-house personnel. 800-478-2054; www.ssisealingsystems.com.
Manhole Liners
AGRU America Sure-Grip
Sure-Grip liners from AGRU America are made of HDPE, HDPE-el, PP, PVDF or ECTFE, and serve as a long-term alternative to spray-applied concrete protection products. The liners prevent concrete corrosion and degradation, can substantially extend the lifetime of manhole liners and other structures, and by preventing exfiltration and infiltration, provide direct protection for the environment. The liners have anchoring systems that enable construction in areas of significant backpressure. Unlike spray-applied liners, which have to be reapplied regularly due to cracking or delamination, these liners are long-lasting, and are designed to avoid the residuals cost often associated with concrete spray-on liners, which require tank emptying and cleaning every few years for reapplication. 843-546-0600; www.agruamerica.com.
Sauereisen Manhole ChimneySeal No. F-88
Manhole ChimneySeal No. F-88 from Sauereisen is an elastomeric lining composed of fiber-reinforced, asphalt-modified urethane. It is self-priming with water absorption of 0.05%. Applied by gloved hand at 1/8-inch minimum thickness, it provides a flexible barrier or gasket seal for the prevention of water infiltration. It resists the stresses and movement associated with freeze/thaw environments while maintaining ideal elasticity/adhesion over temperature ranges from negative 30 to 250 degrees F. 412-963-0303; www.sauereisen.com.
Sprayroq SprayWall
SprayWall from Sprayroq is a rigid polyurethane material that provides structural integrity and infiltration control to underground infrastructure assets. It is a 2-1 ratio product that is applied via a heated, plural component spray system. It begins to gel in about eight seconds and is tack free after two minutes. Within 30 to 60 minutes, the initial cure is complete and the structure is capable of accepting flow. The benefits include its structural capacity, which provides for protection against multiple load components within an underground asset including water, soil and traffic loads. In addition, it allows an asset owner to return a structure to service quickly, creating a huge savings on bypass cost, as well as decreasing the overall downtime for a given structure. It is also third-party tested and most recently has undergone significant successful evaluations through AASHTO. 205-957-0020; www.sprayroq.com.
The Strong Company, Inc. Strong-Seal Systems
Strong-Seal MS-2A and MS-2C from The Strong Company are designed to rehabilitate municipal concrete and masonry structures, and effectively stop inflow, infiltration and exfiltration. When spray-applied to a minimum of a 1/2-inch thickness, the cementitious mortars are impervious monolithic liners with compressive and flexural strengths exceeding that of the original structure. Made with Portland cement, MS-2A is the most cost-effective solution for stopping infiltration and restoring structural integrity. MS-2C provides high early strengths and added corrosion protection in mild sulfide environments. High Performance Mix is a pure-fused calcium aluminate mortar that stops infiltration, restores structural integrity, and protects against microbiologically induced corrosion in sanitary sewer systems with harsh sulfide conditions. 800-982-8009; www.strongseal.com.
Manhole Parts and Components
Cherne Air-Loc Bladder Style Manhole Testers
Cherne Air-Loc Bladder Style Manhole Testers provide an efficient, cost-effective method of testing new, existing and rehabilitated manholes, per ASTM C 1244. The testers, supported by an aluminum brace, seal the inside diameter of the manhole at the frame or core. The pushpin rod design enables easy depth adjustment. The remote inflation and monitoring system keeps users away from the danger zone. They are available in 10 variations. 800-321-9532; www.oatey.com/brands/cherne.
CUES Lifter Plus II
The CUES Lifter Plus II access cover tool remover can be rear- or front-mounted. The hydraulic tool can be used on conventional-sized covers and grates and for more challenging removal tasks. It is ideal for front-mounting on vacuum trucks; a connection to the vehicle battery is all that’s required. The cover removal tool is a quick solution for stuck-in-place covers, and it prevents worker injuries. 800-327-7791; www.cuesinc.com.
Prime Resins Primecell Kit
The Primecell Kit from Prime Resins is composed of Soakem Oakum (a dry oakum) soaked in a hydrophilic polymer solution. When wet and either packed or worked into a joint or crack, the resin will foam to form a flexible and tight joint to stop groundwater infiltration. It reacts with water and becomes a watertight rubber-like nontoxic composite. The oakum cord gives strength and density to the composite and makes the application of the resin easier, especially when gushers are present. Primary applications include manholes, culverts and stormwater structures. The kit includes one 10-foot strip of Soakem Oakum, 48 ounces of resin, two insertion sticks, and eight pairs of vinyl gloves. 800-321-7212; www.primeresins.com.
RELINER/Duran Manhole Invert Channel
Improve manhole hydraulics with RELINER/Duran Modular Manhole Invert Channels. Molded fiberglass flumes with smooth sewer pipe interfaces are used to rehabilitate inverts without flow interruption and can be used for new construction. The field-installed modular components bolt together inside the manhole and serve as the form for a new concrete bench. The channels eliminate the inconsistencies associated with field-formed concrete channels. The full-depth lined channels are high flow and easy to clean and maintain. Standard 8- and 12-inch depth channel sections fit through a 24-inch manhole frame and will accommodate 6- through 12-inch pipes. Larger sizes are available. 800-508-6001; www.reliner.com.
USB-USA Spin-Jet
The Spin-Jet from USB-USA is a self-centering, controlled rotating nozzle that is used for cleaning lift stations, barrels and manholes prior to rehabilitation. Available in two different versions, it has driving nozzles that rotate in a 360-degree horizontal plane only. This action eliminates the need to cover the manhole during operation, allowing for constant viewing of the cleaning process. Front jets thoroughly clean any grease, sludge or mud at the bottom. 844-285-5770; www.usb-usa.com.
Sealants
CCI Piping Systems WrapidSeal Manhole Encapsulation System
The WrapidSeal Manhole Encapsulation System from CCI Piping Systems consists of an engineered primer and a wraparound, heat-shrinkable sleeve designed to seal joints and prevent groundwater from entering a collections system. This material has a high-shrink membrane (70% stretch and 40% recovery) designed to shrink around any manhole profile. In addition, the high-tensile strength accommodates structural movement, while the tough backing resists soil stress and provides suitable abrasion resistance. It can be used for new construction or for the rehabilitation of existing manholes to control infiltration through joints and prevent deterioration, thus eliminating costly maintenance repairs and the added expense of treating groundwater. 800-867-2772; www.wrapidseal.com.
Cretex Specialty Products Internal Chimney Seal
Cretex Specialty Products Internal Chimney Seals are mechanical, so there is no need to worry about surface adhesion or stopping active leaks prior to installation. The seals eliminate and prevent manhole chimney inflow. During wet weather, clear water enters the manhole through deteriorated and broken chimney joints, which may burden the collections system. The chimney seal has a 50-year design life and is available in four widths, allowing complete chimney coverage up to 24 vertical inches with a single seal. 800-345-3764; www.cretexseals.com.
