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Bobcat Skidsteer Forums
General Bobcat Skidsteer Forum
compact subgrade with weight of machine 743?
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<blockquote data-quote="brdgbldr" data-source="post: 130082" data-attributes="member: 7474"><p>It depends on how thick of a concrete slab you are putting down and if it will be steel reinforced or not. A thick enough slab will "float" on the sub-grade.</p><p></p><p>I worked in road construction for 30 years and the only thing that got the base rock compacted enough was a dedicated compactor Or vibratory roller. Depending on how big your slab will be, a plate compactor is normally cheap to rent and will do a pretty good job. Just make sure to wet the gravel (not too much but it can't be dry). It acts kind of like a lube to let the pieces of gravel slide in tight to each other.</p><p></p><p>One low tech way we would check for good compaction was to have a fully loaded ten yard truck drive over the area. If the tires sunk in at all, it needed more compaction.</p></blockquote><p></p>
[QUOTE="brdgbldr, post: 130082, member: 7474"] It depends on how thick of a concrete slab you are putting down and if it will be steel reinforced or not. A thick enough slab will “float” on the sub-grade. I worked in road construction for 30 years and the only thing that got the base rock compacted enough was a dedicated compactor Or vibratory roller. Depending on how big your slab will be, a plate compactor is normally cheap to rent and will do a pretty good job. Just make sure to wet the gravel (not too much but it can’t be dry). It acts kind of like a lube to let the pieces of gravel slide in tight to each other. One low tech way we would check for good compaction was to have a fully loaded ten yard truck drive over the area. If the tires sunk in at all, it needed more compaction. [/QUOTE]
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Bobcat Skidsteer Forums
General Bobcat Skidsteer Forum
compact subgrade with weight of machine 743?
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