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underpinning with concrete and drypack
i am specifying underpinning with concrete, with the top 2 inches to be drypacked. should i provide a time interval between the concrete placement and the drypacking work.
i had in mind 4 days from concrete placement to drypacking work (drypacking with non shrink grout) and then additional 3 days for drypack to cure before going to the next set of pins, thus for a total of 7 days.
does concrete shrink only between the time of placement and initial set, or is this a gradual process continuing.

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[url="http://www.dimcax.com"]几何尺寸与公差标准[/url]

2009-09-16, 05:09 PM	#1
huangyhg 超级版主注册日期: 04-03 帖子: 18592 精华: 36 现金: 249466 标准币资产: 1080358888 标准币	underpinning with concrete and drypack underpinning with concrete and drypack i am specifying underpinning with concrete, with the top 2 inches to be drypacked. should i provide a time interval between the concrete placement and the drypacking work. i had in mind 4 days from concrete placement to drypacking work (drypacking with non shrink grout) and then additional 3 days for drypack to cure before going to the next set of pins, thus for a total of 7 days. does concrete shrink only between the time of placement and initial set, or is this a gradual process continuing. __________________ 借用达朗贝尔的名言：前进吧，你会得到信心! [url="http://www.dimcax.com"]几何尺寸与公差标准[/url]