{"id":65899,"date":"2008-05-08T18:31:40","date_gmt":"2008-05-08T18:31:40","guid":{"rendered":"https:\/\/zonda-develop.go-vip.net\/concrete-construction\/article\/iron-constitution_o"},"modified":"2008-05-08T18:31:40","modified_gmt":"2008-05-08T18:31:40","slug":"iron-constitution_o","status":"publish","type":"post","link":"https:\/\/zonda-develop.go-vip.net\/concrete-construction\/projects\/infrastructure\/iron-constitution_o\/","title":{"rendered":"Iron Constitution"},"content":{"rendered":"<div class=\"wp-block-group is-layout-constrained wp-block-group-is-layout-constrained\"> <\/div><div class=\"wp-block-group is-layout-constrained wp-block-group-is-layout-constrained\"> <p class=\"wp-block-paragraph\">When you&#8217;re processing 700,000 tons of solid waste a year like the Southeastern Public Service Authority in Portsmouth, Va., the last thing you want to do is shut down operations to fix a cracked and crumbling floor.<\/p> <p class=\"wp-block-paragraph\">But when the inevitable can no longer be postponed, you want that repair to be as fast as possible.<\/p> <p class=\"wp-block-paragraph\">\u201cWe run very big CAT 980G loaders on these floors,\u201d says Jim McMichael, waste engineering manager for the authority&#8217;s refuse-derived fuel processing plant. \u201cBecause we dispose of all the trash for six cities and two counties in Virginia, downtime is very precious to us.\u201d<\/p> <p class=\"wp-block-paragraph\">Like virtually all solid waste operations, the floors of the authority&#8217;s transfer stations are concrete. But even with a 1-foot structural slab, heavy front-end loaders and tractors, metal, and glass can wear away up to 1 inch of floor every year in operations that handle more than 500 tons\/day. Facilities that process 2,000 tons or more a day may lose even more.<\/p> <p class=\"wp-block-paragraph\">Loathe to endure the two weeks required for surface preparation, removing the old concrete, putting down a bonding agent, placing fresh concrete, and letting it cure for seven days, McMichael is patching floors with a combination of recycled iron shavings and cement called Delta Top. The product&#8217;s installer, Delta Pacific\u2013Structural Preservation Systems (SPS), says it provides four to eight times the impact and abrasion resistance of concrete.<\/p> <p class=\"wp-block-paragraph\">Most recently, McMichael specified the product for a 10,000-square-foot repair. Because the product allows facilities to continue operating while the worn part of the floor is being replaced, one floor surface can be repaired while another is still being used.<\/p> <p class=\"wp-block-paragraph\">\u201cYou don&#8217;t have to rip up the entire floor; it can be installed right on top of the existing concrete,\u201d says Jim Andrews, general manager of Delta Pacific\u2013SPS&#8217;s heavy duty flooring division. \u201cWe prepare the area to be overlaid and bond the new topping to the base slab. In most cases, this can be done in one weekend. If we pour on Saturday, you&#8217;re typically back rolling on Monday.\u201d<\/p> <p class=\"wp-block-paragraph\">Having completed his third project using Delta Top, McMichael feels the additional investment is justified by not having to shut down.<\/p> <p class=\"wp-block-paragraph\">\u201cFor smaller operations, such as those handling 25 tons\/day, an iron aggregate floor might not be as competitive as other options, and it might not make economic sense,\u201d says Andrews. \u201cBut operations that process 500 or more tons\/day would see a financial benefit.\u201d<\/p> <p class=\"wp-block-paragraph\">Other factors in your cost-benefit calculation should include:<\/p><\/div> <!--nextpage--><div class=\"wp-block-group is-layout-constrained wp-block-group-is-layout-constrained\"> <\/div><div class=\"wp-block-group is-layout-constrained wp-block-group-is-layout-constrained\"> <p class=\"wp-block-paragraph\"><b>Wear and tear on equipment.<\/b> Tires that wear faster have to be replaced more often; if you&#8217;re down to the rebar on the concrete floor, equipment will wear faster because it&#8217;s running over reinforced steel.<\/p> <p class=\"wp-block-paragraph\"><b>Opportunity cost.<\/b> How often do you replace the floor, and how much revenue do you lose during the time it takes to make the repair?<\/p> <p class=\"wp-block-paragraph\">In an industry where even one day of downtime hurts the bottom line, faster tipping floor repairs can keep a solid-waste-handling facility in tip-top shape.<\/p> <p class=\"wp-block-paragraph\"><i>\u2014 LaFond is senior editorial manager at Constructive Communication Inc., Dublin, Ohio.<\/i><\/p><\/div> ","protected":false},"excerpt":{"rendered":"<p>When you&#8217;re processing 700,000 tons of solid waste a year like the Southeastern Public Service Authority in Portsmouth, Va., the last thing you want to do is shut down operations to fix a cracked and crumbling floor. But when the inevitable can no longer be postponed, you want that repair to be as fast as [&hellip;]<\/p>\n","protected":false},"author":0,"featured_media":65903,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_memberships_contains_paid_content":false,"scheduledNewsletterDates":[],"_scheduled_newsletter_id":0,"footnotes":"","jetpack_post_was_ever_published":false,"zonda_content_type_url_append":"_o","zonda_dfp_zone":"","zonda_exclude_recommended_contents":false,"zonda_exclude_most_popular":false,"zonda_exclude_tagged_results":false,"zonda_eyebrow":"Wasteworks: Building & Facility Management","zonda_last_newsletter_date":"2099-12-31T23:59:59.999-05:00","zonda_original_url":"","zonda_pdf_version":0,"zonda_print_headline":"Iron Constitution","zonda_promo_abstract":"One of the nation's largest tipping floors cuts repair time in half.","zonda_promo_headline":"","zonda_promo_image":0,"zonda_subheadline":"One of the nation's largest tipping floors cuts repair time in half."},"tags":[],"news_item_type":[28],"section_10":[83124],"subject":[1464,1394,474,629,178,715,106,10276],"organization":[1964],"award":[],"person":[],"product_type_10":[],"content-group":[],"event":[],"location":[],"state":[],"brand":[21460],"jlc-category":[],"year_tax":[],"sponsor":[],"coauthors":[88940],"class_list":["post-65899","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","news_item_type-article","section_10-infrastructure","subject-aggregates","subject-buildings-and-facilities","subject-caulks-adhesives-and-sealants","subject-concrete","subject-flooring","subject-natural-metals","subject-operations","subject-repair","organization-delta","brand-public-works"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v28.2 (Yoast SEO v28.2) - 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