Quality Assurance Program for Volume-Batched High-Strength Concrete

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Title: Quality Assurance Program for Volume-Batched High-Strength Concrete

Author(s): N. A. Cumming and P. T. Seabrook

Publication: Concrete International

Volume: 10

Issue: 8

Appears on pages(s): 28-32

Keywords: air entrainment; batching; bridge decks; high strength concretes; quality assurance; General

Date: 8/1/1988

Abstract:
The Alex Fraser Bridge, located near Vancouver, B.C., is the world's longest cable stayed bridge, spanning 465 m. Large quantities of cast-in-place, high-strength concrete were placed, of which 1055 m3 was 55 MPa low-slump, volume batched concrete used in the deck overlay. This article describes the quality-assurance procedures, presents a statistical analysis of the test data, and compares the statistical performance of the volume-batched concrete to weight-batched, ready-mixed concrete of the same strength class.