What are the benefits and advantages of concrete flooring when used in parking lot floors, and what are the technical requirements and general specifications that should be considered to ensure the quality and durability of these floors?
Durability, concrete is a highly robust material that offers a durability and permanence that's simply unobtainable from other materials, Low Maintenance, Practical Benefits, Dispelling the Myths, Green Benefits. They are particularly useful for heavy loads or traffic or, when combined with underfloor heating, for continuous and efficient space heating. Concrete floors do not have grout lines, joints, or fibers that can trap dirt. The ideal concrete mixing ratio for any concrete is 4:2:1, where 4 parts are crushed stones, 2 parts are sand, and 1 part is cement. Subject to application. The standard mix, which has a ratio of 1:2:3 (cement: sand: aggregates) or 1:1.5:3.5, is the most popular kind of concrete mixture (cement: sand: gravel) for heavy load. For better bonding, coarse aggregates with a rough surface are preferred over smooth aggregates. The aggregates should be hard and strong enough to provide adequate strength to the concrete. The water content of the aggregates should not exceed 10% if submerged underwater for 24 hours.
Benefits and advantages for parking lots-durability, strength, LCCA (life cycle cost analysis) shows the economical benefits of utilizing concrete. Can also affect nighttime visibility via the albedo principle/effect.
Technical requirements will differ significantly due to ESALs, size, climate (are there freeze/thaw cycles, are the roads salted, etc.), timelines (ie-how long do you have before there needs to be traffic atop the pavement), and the like.
Typically, a 7-day and 28-day compressive strength test is performed and those numbers control if the concrete "makes" or not. Additives like admixtures or fibers can also provide additional project-specific benefits. Taking time to accurately measure the slump of the concrete at the pour site is critical-and before all else-ensure that your subbase is solid.
You can design everything right when it comes to the concrete parking lot and still have a site fail within a few months if your subbase was improperly strengthened/worked prior to the application of concrete.
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