Placement and compaction
Found 8 free book(s)Method for Prediction of FlexiblePipe Deflection - usbr.gov
www.usbr.govIn addition to the initial out-of-roundness, placement and compaction of the soil beside the pipe can cause elongation (an increase in the vertical diameter) of the pipe. The elongation is dependent on the pipe stiffness, the type of compaction, the percent compaction, and whether or not the pipe is strutted [4].
Handbook of PVC Pipe Design and Construction - Uni-Bell
www.uni-bell.orgcient for the safe placement and compaction of haunching. The space between pipe and trench wall must be wider than the compaction equipment used in the pipe zone. Minimum width recommendations are: 18 in. (450 mm) for 4- and 6-in. (100- and 150-mm) pipe sizes No less than 12 to 18 in. (300 to 450 mm) greater than the pipe OD for 8-in.
FIELD MOISTURE AND DENSITY TESTING WITH THE …
www.virginiadot.orgJun 22, 2015 · After placement and compaction of the embankment material by the contractor, the inspector then conducts a field density test and a field moisture content test on the lift. ... A construction project presents various situations in which compaction data is required. Depending upon the material to be tested, there are different testing methods ...
“SECTION 304 - SUBBASE COURSE
www.dot.ny.govNotify the Engineer in writing of which placement option, material option (if25 applicable) and/or material type is proposed for use, at least 14 calendar days prior to performing the ... 304-3.03 Compaction. When the moisture content is within the limits for proper compaction, compact the material in accordance with the requirements of §203-3 ...
Chapter 7 - Underground Installation of PE Piping
plasticpipe.orgCompaction of trench backfill immediately above the pipe facilitates the ... of its placement are one of the most important factors in limiting the deformation of PE pipe. Primary Initial Backfill - This zone of backfill provides the primary support against lateral pipe deformation. To ensure such support is available, this zone should
Tack Coat Guidelines
dot.ca.govSpreading and Compaction Total Thickness Shown on Plans Number of Layers 0.25 foot or less 1 0.26–0.50 foot 2 0.51–0.75 foot 3 0.76–1.00 foot 4 The tack coat application rate varies with the condition of the existing surface to which it is applied. In general, a tight or dense surface requires less tack coat than an open textured,
Design Standards No. 13 Embankment Dams - usbr.gov
www.usbr.govColorado, during membrane placement ..... 2-77 2.3.6.3-2 Placing asphaltic concrete on the upstream slope of Montgomery Dam, Colorado. ..... 2-78 2.3.6.3-3 Foundation cutoff used at Montgomery Dam, Colorado. ..... 2-80 2.3.6.3-4 Completed asphaltic concrete facing …
Substation Civil Design and Construction Standard
www.tasnetworks.com.auTasmanian Networks Pty Ltd (ABN 24 167 357 299) Standard Substation Civil Design and Construction Standard R590634 Version 1.0, June 2018