ENGINEERING CONSULTANTS Excellence of services remains our first

ENGINEERING CONSULTANTS

Excellence of services remains our first goal in answer to our Clients requirements and for their entire satisfaction.

Founded in Montreal in 1984 and incorporated in February 1985, STRUDES Inc. was originally established as a civil and structural engineering consultant firm. The constant addition of highly specialized personnel led to a quick expansion into other engineering fields. In 1991, STRUDES Engineers was incorporated in Boston, Massachusetts, as a subsidiary of STRUDES Inc. Whether your requirements include expansion through new facilities and equipment, or evaluation and modernization of existing ones, we can provide a full range of engineering services including preliminary and final design, contract evaluation and administration, environmental studies, schedule development and site preparation. The experience acquired by STRUDES engineers is at your disposal in helping you to determine the most economical and practical solutions to your needs.

LIST OF SERVICES Project Management Civil Structural Engineering � Evaluation of contractors and consultants � Building designs (industrial, commercial) � Contract administration � Site preparation and services � Bid procedure and evaluation � Heavy machinery foundations � Business plan cost estimating and control � Storages, including silos and tanks � Schedule development and control expediting � Steel and concrete industrial stacks � Structural analysis of unique structures � Large roofs, including dome - type � Structure subject to dynamic and vibration loads � Vibration and noise control evaluations

LIST OF SERVICES Electrical and Instrumentation Engineering � High and low power distribution, including substations � Motor evaluation and selection � Building electrical systems � Industrial and commercial controls

LIST OF SERVICES Mechanical Engineering � Feasibility studies, including environmental � Plant layouts � Plant evaluations and modernization � Bulk material terminals � (marine, rail and truck) � Equipment evaluation and selection � Material handling equipment � Heating, air-conditioning and ventilation (HVAC) � Crushers, kilns, mills, presses, screens, furnaces, coolers, etc. � Dust collection equipment � Piping layouts and stress analysis � High pressure vessels

Markets Cement & Rock Products Industry Mining Metallurgy Pulp and Paper Environmental Transportation Material Handling Bulk material terminals: marine, rail and truck Commercial Buildings & Specialized Services

Strudes Projects Cement: One million THP capacity cement plant STRUDES have proudly provided assistance to Lafarge Canada Inc. in the major modernization of their Richmond, British Columbia Plant. The new complex, with a cement capacity of 1, 000 tpy, and including a five stage preheater-precalciner and kiln line, was constructed to replace the outdated wet process plant.

The Molson Centre (now Bell Centre) – Home of Montreal Canadiens In order to meet the economic challenges of professional hockey ownership, the Montreal Canadiens hockey club has replaced the venerable Montreal Forum with a new arena, the Molson Centre, now Bell Centre located in the heart of downtown Montreal. The selection of a double tier truss system, a roof system proposed by STRUDES Inc. , provided the required stiffness, with an unobstructed technical grid area and a reduction of steel weight, resulting in a substantial savings over the original proposal. The arena roof is oval in plan, spanning 134 m x 98 m to thirty six peripheral reinforced concrete columns. In addition to the roof deck, snow loading and mechanical and electrical building services, the roof

LAFARGE: ALPENA MICHIGAN CEMENT PLANT The largest single clinker storage unit in the world was built to protect the environment from dust emission and to improve the quality of clinkers. This 400, 000 ton capacity storage unit constructed for Lafarge's Alpena Michigan Cement plant can accommodate six football fields. The "A" type storage is: 674 ft long, 311 ft wide and 120 ft high The clinker is delivered by a pan conveyor and distributed by a tripper conveyor. The reclaim tunnel, constructed beneath the pile, accommodates a belt conveyor which transfers the clinker to a grinding mill.

LAFARGE: ZUG ISLAND, MICHIGAN CEMENT TERMINAL The most modern and largest Cement Terminal in North America. This Terminal was constructed on Zug Island in Detroit, Michigan, for Lafarge North America. The Terminal comprises an eleven (11) compartment cement silo. OD= 106', H=184', total V=754, 46, 000 ton capacity silo, ship unloading and rail unloading facilities and a warehouse with packing and palletizing production lines.

LAFARGE NORTH AMERICA: EXSHAW PLANT, ALBERTA The close proximity of a housing development to the Lafarge Canada Exshaw Plant in Alberta dictated the replacement of the existing stack with a much taller 90 m reinforced concrete stack able to disperse gases at a higher elevation. An insulated steel flue was installed inside the concrete shell. Construction was carried out during regular hours without interruption to plant operations, and the switch-over from the existing stack to the new one was performed during the regularly scheduled maintenance of the kiln.

� Cement: Silos Exshaw Plant, Alberta STRUDES assisted in many other projects at the Exshaw Plant including newhigh efficiency separators, a new homo silo, partition of a cement silo and a complex of cement storage silos. Four (4) Cement silos with interstice. ID=34', H=218', V=737, 780 C. F. (left) Homogenizing silo. ID= 12. 2 M, H= 45. 5 M (right)

Cement: Lafarge Calcium Aluminates Plant, Chesapeake (VA) � At the Lafarge Calcium Aluminates Plant in Chesapeake, Virginia, STRUDES’ engineers were challenged by poor soil conditions, a very high water table, the site being located on a previously demolished factory, and in a very congested area. STRUDES designed a pile supported reinforced concrete structure tosupport the elevated heavy silos and a steel structure for the packaging and warehouse area. Erection was expedited with the aid of prefabricated steel silos.

Cement: Lafarge's cement terminal, Pittsburgh (PA) Lafarge's cement terminal in Pittsburgh, Pa. , capitalized on it's proximity to the Ohio River, which offered a much � more economical means of transportation than the existing rail system. Fluctuation of the water level of the river was overcome with the renovation of a second hand barge whose deck, equipped with pneumatic unloading equipment, rose and fell along with the water level. Incoming barges, loaded with cement, moved along the stationary barge to meet the arm of theunloader, where the cement was conveyed by a piping system to the silos located on the shore. The crane mounted on the deck also facilitated the removal of the cement barge's covers as well as for the lowering of a small bobcat for final cleaning of the cement barges

Cement: Lafarge's Davenport Plant, Iowa Plant improvements include energy saving projects. At Lafarge's Davenport Plant in Iowa, � the cement was previously pumped to silos via pneumatic lines at considerable electric power input and complicated, manual valve distribution for each silo. The new system designed by Strudes includes belt conveyors and air gravity conveyors with automatic valve controls. This new system eliminates manual distribution on top of silos and instead is operated from the central control room. Strudes has designed many other improvements at this plant.

Aluminium & Steel Aluminium: Ship unloading facility The Alouette Aluminum Project in Sept Iles, Quebec, � was the beneficiary of the expertise STRUDES engineers bring with them to every project as they assisted Alesa Alusuisse in the structural design of this unique ship unloading and handling system capable of retrieval at a rate of 1000 tph for alumina and 500 tph for coke materials.

Steel: Lafarge Canada's St. Constant Plant, Quebec Lafarge Canada's St. � Constant Plant in Quebec required the opening of a new quarryas resources at their existing site were being exhausted. Strudes engineers were able to satisfy their customer's needs by completing the project on schedule, within budget, and without interrupting plant operations.

Environmental: Polution control � STRUDES involvement in the development and construction of new pollution control systems is brought to the forefront as evident in the assistance provided to Procedair (today: Solios) in the structural design of the large baghouses used in the Cement and Aluminum industries.

� Environmental: Alternate Solid Fuels (ASF) Suger Creek MO USA STRUDES designed installation of ASF complete with material handling, shredding and storage. ASF will replace 40% of coal.

� Environmental: Alternate Solid Fuels (ASF) Davenport Iowa USA STRUDES designed installation of ASF complete with material handling, shredding and storage. ASF will replace 40% of coal. We support Lafarge’s strategy/targets for alternate fuels utilization.

� Environmental: Essroc's Picton Cement Plant The bypass dedusting project at Essroc's Picton Cement Plant was a "turn-key" supply. The bag house equipment was i nstalled by the supplier. Strudes' engineers have coordinated and designed the necessary foundations and tie-ups with the existing equipment and structures.

� Environmental: Lafarge Alpena Michigan Plant. The need to improve efficiency, eliminate an environmental liability, and significantly reduce kiln dust made necessary the introduction of new ingredients, taconite and flyash, to the raw mix at the Lafarge Alpena Michigan Plant. The flyash is delivered by rail car and transferred by means of a pneumatic system to a 40, 000 tons dome storage facility. The taconite is delivered by selfunloading ships through the transfer tower whose electrically operated doors allow the ship's boom to unload material in a dust free environment. It is then distributed by a tripper conveyor into a 60, 000 tons storage hall.

� Storage and Material Handling . Silos: Exshaw Plant, Alberta STRUDES assisted in many other projects at the Exshaw Plant including new high efficiency separators, a new homo silo, partition of a cement silo and a complex of cement storage silos. Four (4) Cement silos with interstice. ID=34', H=218', V=737, 780 C. F. (left) Homogenizing silo. ID= 12. 2 M, H= 45. 5 M (right)

Cement: Three silos, blending on demand Truck Loading at Exshaw Cement Plant, Alberta.

Cement: Harleyville – Clinker Silos . New clinker handling and storage was designed to increase storage capacity to include future plant expansion. Two 40, 000 tons reinforced concrete silos and one 1, 500 tons steel silo for off-spec clinker was built. The clinker handling system included cooling bucket elevator, drag chain conveyors and unloading pan conveyor.

. Silos: St-Constant Plant, Quebec Canada for Lafarge Canada STRUDES design of 2 -800 MT. each homogenizing silos, during construction (left picture) and completed (right)

Barge gravity loading: Joppa IL for Lafarge North America

Commercial Light Rail Transit stations (LRTs), CALGARY, AB It has the world’s first ultra-thin-shelled canopy system constructed with the new Ductal® technology and opened the door for architects to create structures that were once imnimaginable. The technology called “Ductal®” is Lafarge North America’s ultra-high performance, fiber reinforced concrete (UHPFRC) material that offers superior strength, durability, ductility and aesthetics, while providing highly moldable products with a quality surface. The station consists of twentyfour ultra-thin canopies (5. 1 m x 6 m and just 20 mm thick /16′-9″ x 19′-8″ and ¾″ thick), supported on single columns, providing protection from the elements and lighting to the platform below. The canopies, curved in two planes, challenged the structural engineer in his design of the canopy shell without reinforcement.

The Charles Pankow Award is the highest award of The American Society of Civil. Engineers (ASCE). To date, this innovative project has achieved the following awards: 2005 APEGGA Summit Award: Project Achievement 2005 ACI Award of Excellence: Design & Construction in Concrete 2005 PCI Design Award: Best Custom Solution 2005 PCI Design Award: Harry H. Edwards Industry Advancement 2005 ASTech Award Finalist: Outstanding Leadership in Alberta Technology 2006 CERF Charles Pankow Award for Innovation 2006 fib (Fédération internationale du béton)/International Federation for Structural Concrete): Award for Outstanding Structure.

Pulp and Paper Pulp & Paper: Donohue Pulp Kraft Mill, St. Felicien, Quebec When walls in the high density tank collapsed during routine emptying of the liquid at the Donohue Pulp Kraft Mill in St. Felicien, Quebec due to the vent freeze, Strudes engineers were on site the next day (Sunday) and quickly came up with a solution for securing the tank and the subsequent removal of a very expensive and long delivery defuser located at the top of the tank. Work was performed around the clock, the tank was rebuilt and the defuser reinstalled at a substantial savings to the owner

Petroleum distribution: Shell terminal, Montreal QC. STRUDES engineers assisted Shell in the modernization of their Montreal-East distribution terminal with the addition of a new control system which facilitated the handling of their petroleum products.

The continuous research into new technological advancements, along with state-of-the-art computer equipment and software, guarantees our Clients the quality, efficiency, and accuracy demanded of our profession. CONSULTANT ENGINEERS