Remediation Services for Crumbing Concrete Foundations Statement of Qualifications Submitted on November 30, 2017: Maureen Goulet Senior Program Manager CRCOG 241 Main Street, 4th Floor Hartford, CT 06106 November 30, 2017 CRCOG 241 Main Street, 4th Floor Hartford, CT 06106 Re: Remediation Services for Crumbling Concrete Foundations Maureen Goulet: STRUCTURAL, a Structural Group Company has prepared the following statement of qualifications in response to the Remediation Services for Crumbing Concrete Foundations. We appreciate your consideration and believe STRUCTURAL possesses the requisite experience to exceed your expectations for quality, safety and project performance. Our team is dedicated to making new and existing structures stronger and last longer. We integrate specialty repair services with technology driven solutions to sustain and enhance infrastructure. As industry experts in concrete repair with over 20 offices nationwide, STRUCTURAL has the experience to take on structural repair projects of any size, in any location. STRUCTURAL, has local offices in Hawthorne, NJ, Long Island City, NY and Hartford, CT and performs about $40M a year in repair related services. We are the largest specialty concrete repair contractor in the United States according to Engineering News Record. That means that our customers can trust that we will provide a safe, quality project. As requested our response contains the following information: Section 1 – Introduction Section 2 – Recent Clients & References Section 3 – Service Description Section 4 – Costs Section 5 – Implementation Details Section 6 – Insurance Requirements If you have any questions related to the requirements and services in this proposal please contact me at: (973) 310-9166. We would welcome an opportunity to discuss the project in further detail and provide any support you may need on this important project. Sincerely, Jesse Cafourek Branch Director Structural Preservation Systems, LLC Direct: (973) 310-9166 Structural Preservation Systems, LLC 1755 Highland Avenue, Building B • Cheshire, CT 06410 • Phone: 203-269-7552 • Fax: 203-284-1436 www.structural.net RFQ: Remediation Services for Crumbling Concrete Foundations Table of Contents Introduction Section 1 Recent Clients & References Section 2 Service Description Section 3 Costs Section 4 Implementation Details Section 5 Insurance Requirements Section 6 RFQ: Remediation Services for Crumbling Concrete Foundations Section 1: Introduction About Structural Group With member companies dating back to 1902, Structural Group is firmly committed to its mission of making new and existing structures stronger and last longer. As a recognized leader in the specialty construction industry, Structural Group companies deliver turnkey solutions that integrate technology, engineering, and construction. We provide specialty contracting services through our construction companies, and state-of-the-art proprietary products and engineering support services through STRUCTURAL TECHNOLOGIES. STRUCTURAL integrates technology-driven solutions with specialty contracting services to make structures stronger and last longer. STRUCTURAL offers a wide range of specialty repair and maintenance services and is the largest concrete repair contractor in the United States, with over 1,000 employees working from locations nationwide. STRUCTURAL TECHNOLOGIES develops and integrates proprietary products and specialty engineering services, to create highly engineered solutions that make structures stronger and last longer. About STRUCTURAL Founded in 1976 by Peter Emmons, STRUCTURAL is widely recognized as the industry leader in developing innovative repair SERVICES solutions to the most challenging infrastructure repair problems. Concrete Repair In combination with other Structural Group companies, Post-Tensioning Repair STRUCTURAL holds the position as the largest concrete repair Corrosion Control & Protection contractor in the United States and is recognized in Engineering Strengthening News-Record (ENR) magazine’s list of the Top 600 Specialty Contractors. Building Envelope Restoration Force Protection STRUCTURAL Locations Historic Preservation With offices located throughout the country, STRUCTURAL can Moisture Control & Waterproofing meet your specialty contracting needs anywhere in the U.S. STRUCTURAL seamlessly integrates with project teams—including owners, building managers, engineers, and contractors—to plan all aspects of a project. From early design and constructability analysis through project sequencing and safety planning, STRUCTURAL is there, 365 days a year, to safely complete projects under the tightest schedules and in the toughest working conditions. www.structural.net 4 RFQ: Remediation Services for Crumbling Concrete Foundations Section 2: Recent Clients & References 301 W 118th Street Location: New York, NY Start Date: September 2015 Completion Date: September 2016 Contract Value: $2,468,753 Built in 2008, the 14-story luxury residential building, located in Manhattan, features tiered terraces on the upper floors. When a large piece of concrete and rebar dislodged on the top floor and fell on the terrace below, spurred a year-long investigation. Following the Investigate-Design-Build (IDB) approach, STRUCTURAL crews provided access to the building to PROJECT HIGHLIGHTS investigate all locations that needed repairs. Special cornice beams and scaffolding was used to rig the rear of the building. Owner: Due to live post-tensioned strands in the concrete slab on the SoHa 118 Condominium 13th floor, extra precautions — such as scanning the slab — were taken while anchoring the rig to the slab. Specialty Contractor: STRUCTURAL STRUCTURAL assisted with the investigation by performing probes on the unbonded monostrand post-tensioning system (A Structural Group Company) used in the building, and exposed the grout pockets and inspected the condition of the anchorages. STRUCTURAL and Material Supplier: STRUCTURAL TECHNOLOGIES/VSL crews performed post- STRUCTURAL TECHNOLOGIES/VSL tensioning grout pocket repair, strand re-stressing, anchor (A Structural Group Company) replacements, and strand rethreading. Engineer Of Record: In addition to all post-tensioning repairs, the scope of services CVM Engineers also included the repair of masonry flashings and cast stones, Keith Kesner and the repair and waterproofing of all concrete slab edges. (610) 989-3800 Masonry areas with missing or deficient brick ties were retrofitted with new ties, metal cornices were re-anchored, parapet cap flashings were repaired and waterproofed, and window/HVAC perimeter joint sealants were replaced. Crews also retrofitted gaps, repainted, and repaired railing post pockets. STRUCTURAL with the QA/QC support of STRUCTURAL TECHNOLOGIES/VSL performed interior overhead post-tensioning repairs in the finished high-end units. Containment units were constructed in each condominium to prevent dust and debris leaving the work area as well as protect the interior finishes. Outdoor furnishings and plants were safely removed and relocated. The project required extensive planning and coordination with individual unit owners. Despite the challenge of working in an occupied condominium, the project was completed under budget and three months ahead of schedule. www.structural.net 5 Case Study Tomm Residence Basement Location: Willington, CT Start Date: August 2017 Completion Date: November 2017 Contract Value: $163,000 Project Description: The Tomm Residence built in 1984, is a two story above grade and one level below grade structure, whose 8” thick x 7’10” tall cast-in-place concrete basement walls showed severe cracking. An investigate design build project approach was chosen to determine the cause of the rampant structural deterioration and to develop the repair solution. PROJECT HIGHLIGHTS SIMCO Technologies performed a condition assessment of the concrete basement walls and slab on grade. Crews extracted Owner: concrete cores for testing and performed petrographic analysis Mike & Lynn Tomm as well as 3-D tomography. (860) 429-9564 The iron sulfide mineral, pyrrhotite, was found in the aggregate Building Inspector: used to construct the basement walls, which upon exposure to Town of Willington, CT environmental conditions and oxidation caused distress ranging Jim Rupert from surface stains to swelling, cracking, arching and a loss of structural integrity of the concrete. While the extracted core Core Samples Testing: sample showed no internal signs of deterioration this was due to the fact that the buried footings are saturated. The petrographic SIMCO Technologies & RJ Lee Group analysis determined that the pyrrhotite in the basement walls was not fully oxidized the structure is faced with ongoing Engineer: deterioration. STRUCTURAL TECHNOLOGIES (A Structural Group Company) STRUCTURAL TECHNOLOGIES’ subject matter experts, with the support of STRUCTURAL conducted a visual inspection of Specialty Contractor: the structure to assess the existing condition of the structure in STRUCTURAL combination with SIMCO’s findings in order to develop a repair (A Structural Group Company) plan. Crews observed inward arching of the front basement wall, full depth cracks, interior and exterior cracking on the walls and at the ground level. The conditions indicated the walls were in a high level of distress and losing structural integrity, therefore STRUCTURAL recommended a full replacement to the existing basement walls. STRUCTURAL crews performed the repair in four