With the proper tools, you should be able to do the whole job in 4 to 6 hours. Although it seems like a big job, a 1 foot by 10 foot removal and repair is not as bad as it sounds. If you don't get a good solid patch, water could wick up through cracks or the hidden damage could compress or further separate in future shakes. The reason I would not recommend a quick fill fix is that there may be lots of other cracks below the surface. Wetting the existing concrete isn't a bad idea. The BW4000 does not give you this option. The PS-C33 will accept 2 batteries connected in parallel to double the run time. A bit less capacity on the primary than the BW4000 but considerably more capacity on the backup pump. Fill the entire void be sure to push the mix tightly against the existing concrete. The PS-C33 will handle 3000GPH for the primary and 2400GPH for the battery backup system. Keep the mixture a bit to the stiff side, not too wet. You can use a ready mixed in a bag, just add water. Once the edges are clean of dust and chips, carefully fill the open void with a mixture of concrete mix equivalent to a 5000 pound mix. Slightly bevel the edges back from the surface to create an inverted 'V', so it is slightly wider at the bottom than the top. This can be done with a small hand held jackhammer. EMECOLE 555 of 4 MATERIAL SAFETY DATA SHEET MANUFACTURER: EMECOLE, INC. My first plan of attack would be to remove a rectangle of the damaged and weakened concrete apx one foot wide by the length of the crack, apx 10 feet.

The cracks wander in a band about a foot wide with some parallel and joining cracks. This is not going to be the answer you wanted to hear, but here goes.Īlthough I cannot see the cracks up close, it appears that the cracks were created by the floor flexing in a fairly straight line. About Press Copyright Contact us Creators Advertise Developers Terms Privacy Policy & Safety How YouTube works Test new features Press Copyright Contact us Creators.

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