6-
Usually super p is added on site. The slump of concrete should be tested prior to the addition of super p. water should never be added once the super p is mixed
I got the Rattay book on Friday. At first look it seems to be a good reference for qualitative type of questions. A concrete text book I have (author aludes me at the moment and book is at office) has a great chapter on concrete formwork and supports.
There is alot of reading to be done in the...
Cofferdams
The following was from a Georgia manual on construction requirements for Cofferdams:
525.3.05 Construction
A. Designing Cofferdams
Cofferdams shall be structurally adequate to withstand external and internal forces including the following:
1. Forces and pressures from an...
OSHA’s “Top 10”
1. Scaffolding
OSHA standard 1926.451 requires employers to provide scaffolding at heights of 10 feet or more. An estimated 2.3 million construction workers, or 65 percent of the construction industry, work on scaffolds frequently. Protecting these workers from scaffold-related...
SCHEDULING -- Approx. 17.5% of problems
Construction Sequencing
CPM Network Analysis
Activity Time Analysis
Resource Scheduling
Time-Cost Trade-Off
Any ideass on time-cost trade off typical problems?
TEMPORARY STRUCTURES -- Approx. 12.5% of problems
Construction Loads
Formwork
False work and Scaffolding
Shoring and Reshoring
Concrete Maturity and Early Strength Evaluation
Bracing
Anchorage
Cofferdams
Codes and Standards: American Society of Civil Engineers (ASCE 37), American...