recycled concrete aggregates portland state university

Durability Assessment of Recycled Concrete Aggregates for ...

Portland State University PDXScholar TREC Final Reports Transportation Research and Education Center (TREC) 6-2014 Durability Assessment of Recycled Concrete Aggregates for Use in New Concrete Phase II Jason H. Ideker Oregon State University Matthew P. Adams Oregon State University Jennifer Tanner

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Durability Assessment of Recycled Concrete Aggregates for ...

Portland State University PDXScholar TREC Final Reports Transportation Research and Education Center (TREC) 10-2013 Durability Assessment of Recycled Concrete Aggregates for use in New Concrete: Phase I - Revised Jason H. Ideker Oregon State University Matthew P. Adams Oregon State University

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Making Concrete from Recycled Materials

Portland State University PDXScholar TREC Project Briefs Transportation Research and Education Center (TREC) 1-2014 Making Concrete from Recycled Materials ... recycled concrete aggregates (RCA) in new concrete, reliable testing and assessment methods must be developed to determine the quality of the recycled materials.

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Recycled Concrete Aggregate in Portland Cement Concrete

Recycled Concrete Aggregate in Portland Cement Concrete January, 2013 6. Performing Organization Code UTRC 7. Author(s): Dr. Douglas B. Cleary 8. Performing Organization Report No. 9. Performing Organization Name and Address 10. Work Unit No. University Transportation Research Center 138th St and Convent Avenue New York, NY 10031 11.

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Recycled Materials in Portland Cement Concrete

Recycled Materials in Portland Cement Concrete FINAL REPORT June 2000 Submitted by NJDOT Research Project Manager ... The State University Piscataway, NJ 08854-8014 ... recycled aggregate concrete shall be used with optimized cementitious mixtures and not

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Using Recycled Concrete Aggregates in Portland Cement ...

the engineering properties of recycled concrete aggregate (RCA) and portland cement concrete (PCC) made with that aggregate, (2) investigate the effect of RCA and PCC properties on continuous rein-forced concrete pavement (CRCP) perfor-mance, and (3) develop guidelines for the effective use of RCA for CRCP. There are a number of factors affecting

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Recycled Concrete Aggregates in Portland Cement Concrete ...

Recycled Concrete Aggregate in Portland Cement Concrete Pavement . Problem Statement . Recycling of old concrete pavement has become an important issue as more concrete pavement reaches the end of its functional and structural life. Currently, economic considerations are the primary thrust for the use of

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Laboratory and field investigations of recycled portland ...

Iowa State University Capstones, Theses and Dissertations 2010 Laboratory and field investigations of recycled portland cement concrete subbase aggregates Thang Huu Phan Iowa State University Follow this and additional works at:https://lib.dr.iastate/etd Part of theCivil and Environmental Engineering Commons

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Recycled Concrete Aggregate Usage in the US Summary Report

opportunities to use recycled concrete aggregates (RCAs) on projects due to a lack of familiarity with the technical requirements or an uncertainty of how RCAs will perform for a specific application. To gather insight on the current national practice of recycling concrete pavements, a two-part

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Campus Sustainability Tour Portland State University

Portland State University’s “Campus Loop” is a district energy system that provides heating and cooling to multiple buildings in the core of campus. ... Materials with recycled content and items sourced regionally were selected where feasible. Key strategies: low-flow fixtures, light colored and reflective roofing, efficient mechanical ...

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trmehta01.pdf - Point of view Reducing the Environmental ...

Recycled-concrete aggregate, particularly the recycled-masonry aggregate, has a higher porosity than natural aggregate. Therefore, with a given workability, the water requirement for making fresh concrete tends to be high and mechanical properties of hardened concrete are adversely affected. ... Portland State University. CE 321.

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Use of recycled concrete aggregate in high-strength ...

The results of a test programme to study the use of recycled concrete aggregate (RCA) in high-strength, 50 N/mm2 or greater, concrete are described. The effects of coarse RCA content on the ceiling strength, bulk engineering and durability properties of such concretes have been established. The results showed that up to 30% coarse RCA had no effect on concrete strength, but therafter there was ...

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Aggregates for Concrete - The University of Memphis

Recycled concrete, or crushed waste concrete, is a feasible source of aggregates and an economic reality, especially where good aggregates are scarce. Conven-tional stone crushing equipment can be used, and new equipment has been developed to reduce noise and dust. Aggregates must conform to certain standards for

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OP-11: Sustainable Procurement Portland State University ...

Mar 30, 2018  j. All materials and finishes should contain the highest percentage of recycled content wherever possible, including concrete, carpet, tiles, flooring, paint, etc. k. Carpet tiles are to be used wherever carpet is necessary or requested. l. Locally and Regionally sourced finishes and materials within 500 miles are encouraged. m.

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"Synthesis Study on Use of Concrete Recycled from Pavement ...

The demolition of buildings and highway pavements in the State of Indiana generates a considerable amount of waste materials. The disposal of these materials causes strain on the existing landfills which are rapidly approaching their full capacity. This study is a synthesis of the information on the use of concrete recycled from pavements and building rubble for use in the Indiana highway system.

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Dr. Kar's Lab Team

Darshan R. Chauhan (Presently at Portland State University, USA) Reeti Sarkar (Presently at TU Delft, The Netherlands) Hridyesh Tewani (Presently at U Madison-Wisconsin, USA) ... Thesis Title: Investigation of crushed concrete aggregates as a replacement for natural aggregates ...

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Oregon Establishes New Labs For Green Building Research ...

Mar 16, 2009  $1.6 Million to Study Green Materials and Building Performance PORTLAND, Ore. — The Oregon Built Environment Sustainable Technologies Center (Oregon BEST), a research center, has announced a public/private partnership that will invest $1.6 million in green-building research conducted at Oregon State University and Portland State University.

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National Concrete Pavement Technology Center

The National Concrete Pavement Technology Center (CP Tech Center) is a national hub for concrete pavement research and technology transfer focused on the intersection of academic, industry, and agency needs. The CP Tech Center was founded in 2000 and via research, publications, and tech transfer products has been instrumental in advancing ...

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LafargeHolcim in the US - Cement, concrete, aggregates

LafargeHolcim Ltd and its subsidiaries have the assets necessary to meet the building and design challenges of today’s increasing urbanization. In the United States, LafargeHolcim companies have resources across the country, whether operating under the name Lafarge, Holcim, Aggregate Industries or Lattimore Materials, to meet your needs.

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Sustainable practices on the MAX Green Line

materials. In addition to reducing landfill waste, this strategy conserved resources, minimized the amount of new materials needed and reduced emissions generated by manufacturing and transport. Concrete and stone: On the Mall, approximately 30,000 cubic yards of concrete, existing aggregates and base material were crushed or cleaned and reused.

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Embodied Energy Parking Garage - Portland State University

concrete structures are within ten percent of each other as the pre-cast structure uses less steel but more concrete and the post-tensioned structure uses less concrete but more steel. All three of the structural systems have roughly the same embodied energy, within 11% of one another, when using materials with high-recycled content and re-

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Rubber concrete: Mechanical and dynamical properties ...

Dec 01, 2018  The coarse aggregate that was utilized in the experiment was crushed angular stone aggregates with a maximum size of 20 mm having a specific gravity of 2.67 with a water absorption rate of 0.5%. The source of the rubber aggregate was recycled tires which were collected from a local tire recycling

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Construction aggregate - Wikipedia

Construction aggregate, or simply aggregate, is a broad category of coarse- to medium-grained particulate material used in construction, including sand, gravel, crushed stone, slag, recycled concrete and geosynthetic aggregates.Aggregates are the most mined materials in the world. Aggregates are a component of composite materials such as concrete and asphalt concrete; the aggregate serves as ...

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Embodied Energy Parking Garage - Portland State University

concrete structures are within ten percent of each other as the pre-cast structure uses less steel but more concrete and the post-tensioned structure uses less concrete but more steel. All three of the structural systems have roughly the same embodied energy, within 11% of one another, when using materials with high-recycled content and re-

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Campus Sustainability Tour Portland State University

Portland State University’s “Campus Loop” is a district energy system that provides heating and cooling to multiple buildings in the core of campus. ... Materials with recycled content and items sourced regionally were selected where feasible. Key strategies: low-flow fixtures, light colored and reflective roofing, efficient mechanical ...

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OP-11: Sustainable Procurement Portland State University ...

Mar 30, 2018  j. All materials and finishes should contain the highest percentage of recycled content wherever possible, including concrete, carpet, tiles, flooring, paint, etc. k. Carpet tiles are to be used wherever carpet is necessary or requested. l. Locally and Regionally sourced finishes and materials within 500 miles are encouraged. m.

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"Synthesis Study on Use of Concrete Recycled from Pavement ...

The demolition of buildings and highway pavements in the State of Indiana generates a considerable amount of waste materials. The disposal of these materials causes strain on the existing landfills which are rapidly approaching their full capacity. This study is a synthesis of the information on the use of concrete recycled from pavements and building rubble for use in the Indiana highway system.

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Research Group - universe.bits-pilani.ac

Thesis Title: "Determination of Shrinkage Strains of Alkali Activated Binder Concrete" 4. B. Sriman Pankaj (2017-2019) Thesis Title: "Investigation of crushed concrete aggregates as a replacement for natural aggregates" Selected Undergraduate Students Advised (Thesis/Term Project) Darshan R. Chauhan (Presently at Portland State University, USA)

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Sustainable practices on the MAX Green Line

materials. In addition to reducing landfill waste, this strategy conserved resources, minimized the amount of new materials needed and reduced emissions generated by manufacturing and transport. Concrete and stone: On the Mall, approximately 30,000 cubic yards of concrete, existing aggregates and base material were crushed or cleaned and reused.

get price

Oregon Establishes New Labs For Green Building Research ...

Mar 16, 2009  $1.6 Million to Study Green Materials and Building Performance PORTLAND, Ore. — The Oregon Built Environment Sustainable Technologies Center (Oregon BEST), a research center, has announced a public/private partnership that will invest $1.6 million in green-building research conducted at Oregon State University and Portland State University.

get price

LafargeHolcim in the US - Cement, concrete, aggregates

LafargeHolcim Ltd and its subsidiaries have the assets necessary to meet the building and design challenges of today’s increasing urbanization. In the United States, LafargeHolcim companies have resources across the country, whether operating under the name Lafarge, Holcim, Aggregate Industries or Lattimore Materials, to meet your needs.

get price

Rubber concrete: Mechanical and dynamical properties ...

Dec 01, 2018  The coarse aggregate that was utilized in the experiment was crushed angular stone aggregates with a maximum size of 20 mm having a specific gravity of 2.67 with a water absorption rate of 0.5%. The source of the rubber aggregate was recycled tires which were collected from a local tire recycling

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Andrew Rivinus - Portland State University - Canby, Oregon ...

Apr 06, 2016  Led the operations and supply teams for three commercial recycling plants in Washington and Oregon. >Delivered 16K tons per month of recyclable materials to

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Karl Miller Center, Portland State University / Behnisch ...

Nov 19, 2018  Completed in 2017 in Portland, United States. Images by Brad Feinknopf, Janis Rozkalns. Located in downtown Portland, the Karl Miller Center, home to Portland State University

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Concrete news and latest updates

Concrete is a construction material composed of cement (commonly Portland cement) as well as other cementitious materials such as fly ash and slag cement, aggregate (generally a coarse aggregate ...

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Sand Gravel Puyallup - Landscape Materials Gig Harbor ...

Landscape Materials. The wide array of landscaping products we offer at Randles Sand Gravel includes grey crushed rock, blue grey crushed rock, black crushed rock, fill material, landscape rock, topsoil, compost and ground to cover, sand and concrete mix, river rock, and washed round rock.In addition, the recycled products we offer include 2”x4” concrete spalls and 2” minus concrete.

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American Concrete Institute

The American Concrete Institute (ACI) is a leading authority and resource worldwide for the development and distribution of consensus-based standards, technical resources, educational programs, certification programs, and proven expertise for individuals and organizations involved in concrete design, construction, and materials, who share a commitment to pursuing the best use of concrete.

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