Our Commitment To Green Building
Clark Pacific has established itself as a leader in developing Sustainable Precast Concrete Systems in California. Our team (including LEED Accredited Professionals on staff) has an understanding of green building concepts and precast concrete’s contribution to sustainable design.
This is reflected in our research and development projects as well as our contributions to integrated project teams.
Clark Pacific will collaborate with the design team in the early stage of the project to determine how precast concrete can assist the team in developing and meeting its sustainable design goals.
Clark Pacific is a founding member of the PCI Sustainability Committee and will be an early participant in the PCI Sustainable Plants Initiative which takes a close look at the environmental impact of our processes, materials and operations.
USGBC and Regenerative Network founder, David Gottfried had this to say about Clark Pacific:
“Clark Pacific is pioneering new levels of sustainable performance in their cost effective precast building systems, including thermal mass, high R-value insulated panels, local materials, high recycled content and lower waste.” – David Gottfried, Regenerative Network.
Together, we will build a better world.
Precast and Sustainability
We work closely with design teams to develop architectural and structural precast systems based on general sustainable principles and the Leadership in Energy & Environmental Design (LEED) priorities created by the USGBC. In their on-going search for responsive and responsible solutions, designers are finding in precast a number of “sustainable” advantages.
MINIMUM ENERGY PERFORMANCE
Buildings must meet energy-efficiency and performance requirements or the standards of a more restrictive local code, if it exists. Precast concrete’s key benefit comes from its thermal mass, which helps the material store heat and moderate daily temperature swings. When that advantage is used in insulated sandwich wall panels, in which a layer of insulation is sandwiched between two wythes of a concrete panel, the material can produce high R factors and lower HVAC needs. In addition, large precast concrete panels have minimal joints, reducing uncontrolled air infiltration.
Precast concrete components contribute to this requirement because supplementary cementitious mediums can replace a proportion of cement in the mix, and those materials are considered post-industrial recycled ingredients. The use of these materials is expanding, and they will grow in use as more designers learn about the options and the benefits. The significant reason the supplements aid concrete’s environmental friendliness derives from the use of Portland cement, a manufactured product using less energy during production. The most common supplementary cementitious materials are fly ash, silica fume and slag cement, all of which are waste products that would have ended up in a landfill had it not been reused. Recycled concrete also can be used in new precast components as aggregate. In many cases, the use of fly ash and other supplementary materials can produce a more durable product than a total-cement mix can provide.
Most precast plants are within close proximity to the project, and the raw materials used to produce the precast concrete components — cement, aggregate and rebar — are usually obtained from sources within the vicinity of the precast plant. This advantage leads many designers to replace granite, stone and other imported products with precast concrete panels. By using precast concrete rather than marble or granite, not only does it save significant shipping costs, but also results in environmental savings.
CONSTRUCTION WASTE MANAGEMENT
Concrete’s inorganic composition makes it an ideal material to be recycled, and is frequently crushed and reused as aggregate for road bases or construction fill, enabling the reduction of construction, demolition and land-clearing waste that ends up in landfills.
When compared to traditional building methods precast concrete offers many waste-saving benefits. Less material is required to produce precast components because precise mix designs and tighter tolerances can be achieved. Less concrete is wasted because quantities of the materials are tightly controlled. The waste materials also are more likely to be recycled because concrete production takes place in one location under controlled conditions.
There also is less dust and waste at the construction site, because only the needed precast components are delivered. There is no debris from formwork and associated fasteners. Fewer trucks and less time are needed on-site because concrete is made offsite. This is particularly beneficial in urban areas where minimizing traffic disruptions is critical. Less noise is produced at the site as well, reducing noise pollution. A properly designed precast concrete system will result in smaller structural members, longer spans and less material used on-site and this often translates directly into economic savings as well as being eco-friendly.
REDUCE. REUSE. RECYCLE.
The end result is more of a positive domino effect: Less material used means using fewer natural resources and reduced manufacturing and transportation energy, leading to avoided emissions from mining, processing and transporting raw and finished materials