{"id":2848,"date":"2024-12-28T04:03:40","date_gmt":"2024-12-28T04:03:40","guid":{"rendered":"https:\/\/prairieprod.vcnastaging.com\/?p=2848"},"modified":"2024-12-28T04:07:33","modified_gmt":"2024-12-28T04:07:33","slug":"1-and-done","status":"publish","type":"post","link":"https:\/\/www.prairie.com\/fr\/1-and-done\/","title":{"rendered":"1 and Done"},"content":{"rendered":"

\"\"<\/p>\n

Unexpected problems can lead to innovative solutions when jobs don\u2019t run smoothly the first time around.<\/p>\n

Just ask\u00a0Ben Olson<\/strong>\u00a0of R. Olson Concrete Contractors, who worked with general contractor Enger-Vavra, Inc. to restore nearly 200,000 square feet of factory floor for leading engine manufacturer Navistar.<\/p>\n

The challenge: to create new floors in vast sections of Navistar\u2019s existing plant in Melrose Park, Illinois, working around crews refinishing ceilings and walls in the same space.<\/p>\n

\u201cAfter the old flooring had been removed, we scarified the concrete subflooring to create a bondable surface and remove substances that had seeped in over the years,\u201d Olson says.<\/p>\n

Navistar engineers favored a 2-step process for creating the new surface, he notes. \u201cThis involved laying down 2 inches of concrete topping, then using spreaders to distribute trap rock over the surface.\u201d<\/p>\n

Test pour uncovers the issues<\/h2>\n

R. Olson crews did a 10,000-square-foot placement to test bonding and other critical requirements. The results shocked just about everyone involved with the job.<\/p>\n

\u201cWithin two weeks, we saw dramatic cracking and curling,\u201d says Olson. \u201cThe concrete and bonding agent just failed.\u201d<\/p>\n

Thinking the trap rock was drawing too much moisture from the relatively thin concrete layer, Olson suggested moving to an integral trap rock mix paired with a true epoxy bonding agent.<\/p>\n

With Enger-Vavra\u2019s project manager,\u00a0Bill Tyler<\/strong>, in agreement, Olson reached out to Prairie Material to explore fresh ideas.<\/p>\n

A P2P solution<\/h2>\n

Prairie\u2019s Technical Services Team recommended a new mix with integral trap rock plus macrofibers to add strength and minimize cracking. The formula also incorporated a shrinkage reducer and water reducer.<\/p>\n

The new approach would transform 2 steps into 1, reducing labor while addressing the curling, cracking and debonding seen earlier.<\/h2>\n

\"\"<\/p>\n

In partnership with Olson, Prairie experts and engineer \u200bLarry Kaiser<\/strong>\u00a0from W. R. Grace presented the solution to the construction team. Navistar engineers approved a new test section.\u200b<\/p>\n

This time, the mix achieved a \u201cpure chemical bond, curing from the bottom up, which was exactly the result we wanted,\u201d says Olson. \u201cThe test sections took serious abuse from the ceiling and wall renovations going on all around them, but they held up perfectly.\u201d<\/p>\n

Following mix adjustments to reduce set time and approval of final tests, crews quickly completed the pours, first in an 85,000-square-foot section of the plant and later, in a 102,000-square-foot area.<\/p>\n

Continuous on-site support provided by Praire\u2019s Technical Services Team helped the job conclude smoothly. Navistar should see years of strong performance from the finished floors, Olson says.<\/p>","protected":false},"excerpt":{"rendered":"

Unexpected problems can lead to innovative solutions when jobs don\u2019t run smoothly the first time around. Just ask\u00a0Ben Olson\u00a0of R. Olson Concrete Contractors, who worked with general contractor Enger-Vavra, Inc. to restore nearly 200,000 square feet of factory floor for leading engine manufacturer Navistar. The challenge: to create new floors in vast sections of Navistar\u2019s […]<\/p>","protected":false},"author":1,"featured_media":2849,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[1],"tags":[],"class_list":["post-2848","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-uncategorized"],"acf":[],"_links":{"self":[{"href":"https:\/\/www.prairie.com\/fr\/wp-json\/wp\/v2\/posts\/2848","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.prairie.com\/fr\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.prairie.com\/fr\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.prairie.com\/fr\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.prairie.com\/fr\/wp-json\/wp\/v2\/comments?post=2848"}],"version-history":[{"count":0,"href":"https:\/\/www.prairie.com\/fr\/wp-json\/wp\/v2\/posts\/2848\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.prairie.com\/fr\/wp-json\/wp\/v2\/media\/2849"}],"wp:attachment":[{"href":"https:\/\/www.prairie.com\/fr\/wp-json\/wp\/v2\/media?parent=2848"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.prairie.com\/fr\/wp-json\/wp\/v2\/categories?post=2848"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.prairie.com\/fr\/wp-json\/wp\/v2\/tags?post=2848"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}