Saturday, April 20, 2019

LEED Construction Waste Management: Green recycling method to reduce carbon footprint

In the past decade, the push for green, sustainable buildings has been groundless. Today, many public and private influences have incorporated green methods into typical construction projects, whether from local, state or federal legislation or from private organizations. The general goal is to develop sustainable, sustainable urban projects that expand and protect resources rather than overusing resources. Those who agree with the green concept strive to ensure that their projects are efficient, consist of quality materials, and provide long-term cost savings for future residents, owners and end users. This commitment to a sustainable future ensures that the project contributes to the communities and communities in which they operate.

One of the above private organizations is the USGBC or the US Green Building Council. USGBC created a program called LEED to develop guidelines for sustainability and construction. LEED stands for Energy and Environmental Design Leadership and is the rating system for the Independent Green Building Certification Program, which provides voluntary guidance and third-party verification, and the design or construction of buildings or communities uses strategic health indicators designed to improve the environment and human performance, such as: Continuous site development, water conservation, energy efficiency, material selection and indoor environmental quality. Depending on the scores earned in a LEED rating system for a particular project, the project can receive one of the following certification levels: Certification, Silver, Gold or Platinum. USGBC called LEED definition from

"Nationally recognized benchmark for high performance green building design, construction and operation"
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 with from

"Providing building owners and operators with tools that require direct and measurable impact on their buildings and performance."
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  LEED-certified buildings often provide a healthier work and living environment that increases productivity and improves employee health and comfort. The US Green Building Council has developed a range of benefits for implementing LEED strategies ranging from improving air and water quality to reducing solid waste, benefiting owners, occupiers and society as a whole.

The first and most straightforward strategy that real estate developers will encounter and turn around is the construction waste management [this is shown in Credits MRc2.1 and MRc2.2 in the LEED rating program]. The purpose of this credit is to from

"Transfer construction, demolition and land clearing waste into landfills and incinerators." Redirectable, recyclable resources are returned to the manufacturing process. "Redirect reusable materials to the appropriate website."
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  If a project attempts to achieve this reputation in their LEED building certification, then the team must from

"Recycle and/or salvage at least 50% of non-hazardous buildings and dismantled debris [or 75% of credit MRc2.2]. Construction waste management plans, at least to determine whether materials and materials to be transferred from disposal will be listed on site or mixed By weight or volume, but must be consistent."
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  One project that is currently achieving this credit is the Granada Village Shopping Center in Los Angeles, California. The project is a reconstruction of an existing shopping centre built in the early 1960s. Due to the scope of work including the replacement of on-site work, roofs, storefronts, exterior walls, and the internal improvement of many buildings; a large number of demolition must be carried out. This in turn provides an excellent opportunity to recover most of the removed debris. Since the project team is trying to obtain LEED Silver Building certification, the recovery rate is consistent with the threshold, which is actually far more than 75%.

Most projects will undergo some demolition prior to construction, especially if the existing building is redeveloped or the structure needs to be cleaned to allow for new ground construction. This creates a perfect opportunity to transfer some of the waste removed from the building or site. Some waste will also be generated during the construction process. This waste should also be taken into account. The first step is to determine which materials are recyclable in the project. Recycled materials typically include concrete, masonry, metal studs, structural steel, aluminum, wood, cardboard, drywall, sound absorbing bricks, plastics, insulation, glass and carpets.

The next step is for the project team to develop a plan or agreement to remove and isolate the material to be transferred. For tracking purposes, most contractors find it easier to design specific areas on site to separate or mix recyclable materials. In our experience, unless you bring the material to a recycling facility to organize the material for you, carefully create a separate stack of recyclables and waste into the landfill on site. To avoid confusion at the site, some general contractors have even introduced recycling containers with acceptable [and unacceptable] materials that should be placed in them. We recommend that these labels be bilingual and attached to all sides of the container, as well as a wayfinding logo on the entire site to clearly show the location of these containers. The general contractor shall coordinate the plan with all contractors and suppliers to ensure that the recommended procedures are met and the minimum amount of waste is generated. These procedures should be written into the construction waste management plan and distributed and reviewed in pre-work meetings with all relevant submarines and suppliers. In order to actually implement the plan, inform the contractor and the supplier that if they do not follow the plan, they will be subject to refunds and withholding payments, which may be beneficial. One should be aware that crew pollution has been designated as a single material type bin or bin.

This will lead to the next step in determining where someone will ship the material and the recycling center that receives the material. Whether or not an LEED building certification is being attempted, the porter plays a key role in processing and recording the amount of material that is diverted for recycling. When a truck full of debris falls, the porter needs to obtain a receipt from the facility that receives the material, clearly recording the weight of each cargo. The team also needs to do this for all unrecycled materials as it is discarded at local landfills. With a combination of these two types of receipts, the team will be able to determine the overall percentage of buildings being recycled and debris removed.

Another option mentioned earlier is that the porter takes the debris to the sorting facility. These facilities do all the hard work for you, so you don't have to separate all the materials on site. If debris is brought to the sorting facility, all debris can be mixed [recyclable and non-recyclable]. Different sorting facilities provide different recovery rates. Cities usually publish a list of all available sorting/recycling facilities and their relative average recovery rates. This method is currently being used in the Granada Village Shopping Center Redevelopment project we have seen before. Since the burden of sorting is on the facility, this allows field work to be carried out at a faster rate. There is no need to sort and place each type of material in the trash or bin in the field. When selecting a recycling facility for the project, ownership clearly decided to choose a facility that provided extremely high recovery rates. However, there is another factor to consider - close to the site. Having facilities that are too far away from the project can solve higher transportation costs and is not conducive to our budget. As any building estimator can tell you, exporting materials and shipping/truck costs from the field can become very expensive. The balance of these two factors led us to choose a community recycling facility in Sun Valley, California, which provided us with an average of 89.83% mixed building and demolition waste collection rates, just 10.5 miles from the site.

When trying to get this credit in LEED, there are several other ways to meet the requirements besides bringing the debris to the recycling center. If it meets the scope of work for project construction, materials can be rescued on site. Another way is to donate these materials to charitable organizations, such as Habitat for Humanity. Instead of bringing the pieces to the facility, why not take it directly to the next source? For example, in the village of Granada, the large amount of broken concrete material leaving the site [to date about 475 tons] is being sent directly to Brutoco Engineering & Construction, the Orange Line Extension project in Chatsworth Street, California. Then, 100% of this concrete material is crushed, recycled, and reused along with the passage of their project. Ownership is dedicated to projects that encourage walking, cycling and public transportation, and real estate investments, so even getting the chance to influence another transportation project is very exciting for them.

Is the project trying LEED building certification or...



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