Work thru 1/21/2011

After cleaning up the Building M after the pour on 1/15 we immediately formed the columns that are located on the perimeter of that slab on Monday 1/17. Six were completed on Monday as well. In the meantime the other crew completed the fine grade of L Building and after the bug spray Tuesday morning around 10:00 AM that crew covered the slab with vapor barrier, installed the grade beam rebar and completed half of the rebar mat for the large depressed area that is within that slab. Tuesday night we had a bad rain so we had to pump out water and recehck underslab conditions for the first half of the day. Being a 26000 SF slab with a significant amount fo grade beams and slab thickened areas, the process dewatering process interfered with our production for a number of hours.

Once the dewatering was completed we started to form the depressed areas of Building L. The large depressed area contains a perimeter dowel and basket sytem on the North side with a double multiple elevation perimeter with the dowels installed 1' o.c. We agsin had rain on 1/16 but this time the amount of water remaining this morning was minimal luckily.

Update on Work Performed

The end of last week focused on trying to make up lost time due to the weather issues discussed in the two previous postings. Friday was spent making sure Buildings G and M were prepped and ready to go for a double pour on Saturday the 15th. The inspection process went well and we worked into the evening on Friday finishing up in order to ensure the pour would happen.

Saturday morning we started pouring at 5:oo AM. Building G was down in just over 2 hours. Building M took a bit more time due to the design. We placed a total of 768 cubic yards for both buildings averaging 90 cubic yards of placement per hour. By 2:30 PM all concrete was placed. During the pour it was necessary for us to continue working on set up as we had to strip the construction joint between G and M after the concrete set up enough, in order to continue to pour the next building. These buildings had extensive depressed slabs at varying depths and that process was also necessary for those placements. The pour went very well.

Work 1/7 thru 1/13 2011

On the 7th even though we were still demucking some from the rain two days prior we still were able to pour the Cast in Place Columns located south of A. We also started to get vapor barrier down on G and M. The rain came again over the weekend and the pictures show what the crews were dealing with to get ready for the slab pours that are scheduled this week. We had a discussion with the soil inspector and peeled back the vapor barrier as needed to ensure that the underslab sand dried out properly so no future voids would develop based on water and lack of compaction. This approach was a quality control decision by McClure management. The slab set up includes a construction joint with smooth dowels as we have done throughout the project, as well as extensive and newly added depressed areas in building G. Building M setup includes the gym floor and the various elevations of slabs and there are also some CMU footings that will be part of the pour. All diamonds were also formed.