Laserfiche WebLink
_____ __ _ __ _ <br /> r <br /> 63 - Section E/TNS532. A note indicates "do not backfill untfl stair is , <br /> conatructed:' It seema to us that it would be better to require the backfill <br /> not be placed until the concrete has achieved a specitied age or strength. <br /> Strength of concrete before placing backfill is covered in Specs., however, the . <br /> Note about placing of stairs before backfilling is intended to point out that the <br /> stairs act as a compression strut between walls. <br /> � <br /> , <br /> ; <br /> •:� <br /> � <br /> ;,� <br /> ''� <br /> , <br /> ,� <br /> .� <br /> �:'�r� <br /> , t '_� <br /> � r� <br /> A ' <br /> I E� <br /> I ,� <br /> 1 <br /> 6 <br />