X hits on this document

215 views

0 shares

0 downloads

0 comments

35 / 76

Chapter 8 Precast Concrete

Precast Concrete (CASE Guidelines)

Item

Scope

1. Plant Certification / Quality Control Procedures

Review plant operations and quality control procedures.

Fabricator Exempt

2. Mix Design

Inspect concrete batching operations and verify compliance with approved mix design

3. Material Certification

4. Reinforcement Installation

Inspect size, spacing, position and grade of reinforcing steel. Verify that reinforcing bars are free of form oil or other deleterious materials.

5. Prestress Operations

Inspect placement, stressing, grouting and protection of prestressing tendons

6. Connections / Embedded Items

8. Concrete Placement

Inspect placement of concrete. Verify that concrete conveyance and depositing avoids segregation or contamination. Verify that concrete is properly consolidated .

9. Sampling and Testing of Concrete

Test concrete compressive strength (ASTM C31 & C39), slump (ASTM C143), air-content (ASTM C231 or C173) and temperature (ASTM C1064).

10. Curing and Protection

Inspect curing, cold weather protection and hot weather protection procedures.

11. Erected Precast Elements

Inspect erection of precast concrete including member configuration, connections, welding and grouting.

12. Other:

Page 35

Document info
Document views215
Page views215
Page last viewedSun Dec 11 10:09:30 UTC 2016
Pages76
Paragraphs2201
Words27762

Comments