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JR Weiss

World Trade Center Below Grade Waterproofing

By case studies

Surface Applied Waterproofing Case Study

World Trade Center Below Grade Repairs

New York, USA

below grade waterproofing

World Trade Towers – Surface Applied Waterproofing using Krystol T1 and T2

negative side waterproofing

World Trade Towers – Surface Applied Waterproofing using Krystol T1 and T2 tunnels

Background

The New World Trade Center Transportation Hub is just one of five new buildings which will make up the improved vision of downtown New York. Sustainable commercial space, convenient transportation, and a destination cultural center are all attributes which have been balanced gracefully within the new rebuild of the World Trade Center to symbolize the resilience and renaissance of not only New York – but of the entire country. This vision also unites an unprecedented merging of architects, artists, and urban developers, including Santiago Calatrava, David Childs, Norman Foster, Frank Gehry, Daniel Libeskind, Fumihiko Maki, and Richard Rogers. The singular goal is a grand new urban center for 21st century New York, and promises to become the most recognizable site in New York. Even esteemed projects such as these buildings are not without their hurdles. Located in lower Manhattan, two blocks from the Hudson River, the buildings are in a flood zone. The 9A Underpass and North Extension commuter passages, were experiencing what many below-grade concrete structures face – water infiltration. Leaking concrete cracks, damp areas and water penetration through joints were becoming increasingly hazardous to this area used by hundreds of thousands of commuters every day, due to its location adjacent to the new Freedom Tower. Many products were applied to attempt to mitigate the water damage. The problems were found to have been caused by failed external sheet membranes, and due to blind side application, they were impossible to access in or to replace or repair. Injection systems were attempted to address the leaking cracks and persistent damp areas, with results proving only temporary, while costing thousands of dollars in additional labour.

Solution

Greg Maugeri and Billy Della Sorte of Dry Concrete personally assessed the problems the passages were facing. Through countless early morning site visits, the Dry Concrete team performed trials and provided support and technical expertise. As long time Kryton distributors, Dry Concrete has a strong familiarity with the Krystol Cracks Repair System, and through their experience, could confidently recommend it as a permanent solution to the leakage problems. After demonstrating the performance of the products on a wall of one of the passageways, the project’s decision makers agreed with Dry Concrete’s recommendation. The Krystol Crack Repair System was the only concrete repair solution that was able to stop the leaks and return the problem areas to a dry state. Approved by both the Downtown Design Partnership (DDP), and the Port Authority of New York and New Jersey (PATHNYNJ), the Krystol Crack Repair System went to work, effectively sealing the leaking cracks, while providing permanent protection against high ground water pressure. The proprietary chemicals used in the Krystol products will only get more effective at preventing water penetration over time. These chemicals lie dormant throughout the life of the concrete structure, reacting with any present moisture to create hair like, permanent crystals which stop any water from entering the structure.  

Wacker Neuson ST-45 Compact Track Loader

By Announcements

Wacker Neuson ST-45 Compact Track Loader

Wacker Neuson ST45 Track Steer Loader

 

Wacker Neuson’s first entries in the crowded North American skid steer loader market include two skid steers and two compact track loaders powered by a 74-hp Perkins Tier 4 Final diesel engine with maintenance-free exhaust after treatment. All units feature standard two-speed transmission and are available in both H-Pattern and ISO joystick pilot controls.

ST 35: radial-lift compact track loader; 3,500 lb. rated operating capacity; 125 in. lift height
ST 45: vertical-lift skid steer; 4,500 lb. rated operating capacity; 134 in. lift height
Hydraulically driven fan operates only as needed, allowing faster engine warm-up times and reduced noise.

Wacker Neuson ST-45 Summary

The ST 45 vertical lift compact track loader delivers high operating capacity and extended lift height, making it ideal for digging and loading. The ST 45 delivers 4,500 pounds of operating capacity at 50% and a lift height up to 134 inches. The machine is powered by a 74.3 hp turbo-charged Perkins Tier IV Final engine. The ST 45 is available in both H-Pattern and ISO joystick pilot controls. The ergonomically designed controls and pressurized cab provides comfort and visibility, reducing operator fatigue and increasing productivity.

  • Standard two-speed transmission reduces travel time on job sites giving the operator more time throughout the day to get more tasks completed.
  • Spacious extended cab maximizes room and comfort for the operator to move inside the cab.
  • Optional high flow hydraulics increases the range of usable attachments improving efficiency and productivity.
  • Quick and easy service access from the forward tilting cab and the arrangement of internal components makes it easy to maintain this machine.
  • Hydraulically driven fan operates on an as-needed basis allowing faster warm-up times of the engine and significantly reducing noise.

 Rental Rate on Wacker ST-45 – $400.00 daily,  $1,200.00 Weekly,  $3,600.00 monthly

Rental Charges are based on an 8 hour day, 40 hour week, 160 hour month. Double shift rates are 1.5X the single shift charge, triple shift rates are 2X the single shift charge. Items marked with an “F” are subject to extra pick up and delivery charges. Routine maintenance (such as changing oil and filters) is the Renter’s responsibility. Call Gamka for items not listed, our rental inventory does fluctuate!

Purchase Price of Current unit in stock – Wacker ST-45 – 5200015597 5* ST45 Skid Steer,Vertical CTL (Compact Track Loader), Comfort Cab, ISO-Pattern Controls, Universal Skid Plate is $59,750.00 + inbound freight, dealer prep, taxes, and bucket.

Technical specifications

ST 45

Operating data

Height top of ROPS 82 in
Overall length w/ bucket 144 in
Overall length w/o bucket 116 in
Height Hinge Pin Max 134 in
Operating weight 10,245 lb
Rated Operating Capacity 50% 4,500 lb
Rated Operating Capacity 35% 3,150 lb
Length of track on ground 63 in
Dumping height at max height 107.1 in
Tipping angle (Bucket dump) w/bucket at max 38 °
Ground clearance 9.5 in
Width w/o bucket 78 in
Width track 17.7 in

Engine / Motor

Engine / Motor Turbo-Charged Perkins 854 Tier 4 Final
Engine performance 74.3 hp
Tank capacity Fuel 24.3 US gal

Hydraulic system

Auxiliary Hydraulics- Standard Flow 22.5 US gpm
Auxiliary Hydraulics- High Flow 36 US gpm
Pressure Aux. relief 3,338 psi

Power transmission

Travel speed Low 4.3 mph
Travel speed High 8.7 mph

 

Standard components

  • Vertical Lift Arm
  • Perkins, 4 stroke, 74.3HP turbo charged diesel engine, Tier 4 Final compliant
  • 17.7 in- (450mm) wide Bridgestone tracks with 1,000 hour prorated warranty
  • Rexroth ® Hydrostatic Pump and drive motor
  • Available in H-Pattern or ISO Controls joystick pilot controls
  • 2-Speed transmission with top speed of 4.3 mph (low-speed) and 8.7 mph (high-speed)
  • Spring-applied, hydraulic released wet-disc parking brakes
  • Hydraulic universal skid steer quick-hitch system for attachments
  • Front Auxiliary Hydraulics with flat face couplers
  • Arm Float Position
  • Adjustable spring suspension comfort seat with seat belt
  • Foot and Manual Throttle
  • Front and Rear work lights
  • ROPS Level I compliant canopy
  • Lexan Safety Roof
  • Back up alarm
  • 12-Volt Power Accessory
  • Seat Belt
  • Isolated Pressurized Cab*
  • Automotive style HVAC system*
  • Easy-to-Access side windows*
  • Radio-Ready

*Available on Cab units only

Options

  • Hydraulic Coupler
  • Enclosed Pressurized Cab, Heat, Air Conditioning
  • Engine Block Heater
  • One Way Hydraulic Bucket Leveling
  • Ride Control
  • Radio
  • Adjustable High Flow
  • 14 Pin Front Electric Attachment Control

 

NJLCA Recognizes Bob Hibler of Gamka Sales

By Announcements

NJLCA Recognizes Bob Hibler of Gamka Sales

On December 17th, 2013, the NJLCA Recognizes Bob Hibler of Gamka Sales with a Certificate of Appreciation in recognition of his valuable contributions as the Chairman of the Board of the New jersey Landscape Contractors Association and serving the NJLCA Board of Directors from 2010 through 2013.

Gamka Sales is proud of Bob Hibler and his tremendous dedication to helping an association that is focused and committed to Landscape Contractors throughout New Jersey and the Green Industry as a whole.

 

NJLCA Recognizes Bob Hibler of Gamka Sales

Bob Hibler Appreciation Award by NJLCA 2013

NJLCA Recognizes Bob Hibler of Gamka Sales

Bob Hibler Appreciation Award by NJLCA 2013

Gamka Sales Co. Inc. sells and rents construction equipment to contractors and municipalities. We provide Husqvarna outdoor power equipment and products to landscapers, contractors, tree surgeons, property managers, arborists and homeowners for their lawn, shrub, garden, and tree maintenance requirements.

 

New Jersey Landscape Contractors Association

New Jersey Landscape Contractors Association

The New Jersey Landscape Contractors Association is a group of professional landscape contractors dedicated to advancing the integrity, proficiency and continued growth of the landscape industry. As an NJLCA member you receive valuable information and benefits indispensable to the ongoing success of your business.

How Do We Help You?
The NJLCA is a proven resource to both the landscape professional and consumer. As members, qualified landscape contractors offer a variety of services from planning and design to installation and maintenance which are oriented to the needs of each client.

For more information on this great association or to join please click here.

New Jersey Landscape 2014 37th Annual Trade Show and Conference

The New Jersey Landscape Contractors Association proudly announces their 37th Annual Trade Show and Conference, New Jersey Landscape 2014, on Wednesday, February 26, 2014. The Meadowlands Exposition Center in Secaucus, NJ will once again be the site for this one day Green Industry marketplace and educational event. NJ Landscape 2014 will feature over 150 companies showcasing their newest products, equipment, machinery and services. A DEP program will be coordinated, while additional business related seminars will also be offered.  For additional information call 201-703-3600 or visit njlca.org