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Home > Publications > International Concrete Abstracts Portal
The International Concrete Abstracts Portal is an ACI led collaboration with leading technical organizations from within the international concrete industry and offers the most comprehensive collection of published concrete abstracts.
Showing 1-4 of 4 Abstracts search results
Document:
104-M28
Date:
May 1, 2007
Author(s):
Benoit Bissonnette, Emmanuel K. Attiogbe, Matthew A. Miltenberger, and Carl Fortin
Publication:
Materials Journal
Volume:
104
Issue:
3
Abstract:
This paper summarizes the findings of the first part of a project intended to characterize the curling and joint opening of concrete slabs in a controlled environment, where the investigated variables were the concrete composition (normal- and high-strength concrete) and amount of steel reinforcement (?s = 0, 0.08, and 0.23%). In addition to the curvature with respect to time, different phenomena were monitored on the experimental slabs, such as strains, joint movements, surface cracking, and relative humidity (RH). It was found that curling and joint opening develop early and that the rate at which each develops is proportional to that of drying shrinkage. Besides, reinforcement can cause cracking between joints and high stiffness combined with high shrinkage (drying shrinkage and autogenous shrinkage) can be detrimental to the performance of slabs-on-ground. The results obtained provide unique reference data and overall insight on the behavior of slabs-on-ground.
DOI:
10.14359/18671
91-M09
January 1, 1994
ACI Committee 301
91
1
These specifications are a reference standard which the engineer or architect may make applicable to any building project by citing them in the project specifications. He supplements them as needed by designating or specifying individual project requirements. The document covers materials and proportioning of concrete; reinforcing and prestressing steels; production, placing, and curing of concrete; and formwork design and construction. Methods of treatment of joints and embedded items, repair of surface defects, and finishing of formed surfaces are specified. Separate chapters are devoted to slab construction and finishing, architectural concrete, massive concrete, and materials and methods for constructing post-tensioned concrete. Provisions governing testing, evaluation, and acceptance of concrete as well as for acceptance of the structure are included.
10.14359/4452
86-M26
May 1, 1989
ACI Committee 302
86
Quality of concrete slab or floor is highly dependent on achieving a hard and durable surface that is plane and free of cracks. The properties of the surface are determined by the quality of the concreting operations. Furthermore, timing of these concreting operations and finishing techniques is critical. Otherwise, undesirable changes occur at the wearing surface; these may lead to soft or dusting surfaces, permeable concrete, cracking, and poor durability. This guide tells how to produce good quality floors and slabs for various classes of service, emphasizing such aspects of construction as site preparation, concreting materials, concrete mixture proportions, concreting, workmanship, and curing. Adequate supervision and inspection are required of all job operations particularly including finishing.
10.14359/2452
84-M48
November 1, 1987
ACI Committee 330
84
6
Concrete parking lots now serve many transportation facilities, industrial plants, commercial developments, and multifamily housing projects of all sizes. They are used for storage of vehicles and goods. They provide maneuvering areas for vehicles and access for delivery and distribution vehicles. The design and construction of concrete slabs for parking lots and outside storage areas share many similarities with the design and construction of streets and highways, but they also have some very distinct differences. A full appreciation of the differences and the modification of design and construction procedures to take these differences into account can result in economical and serviceable concrete parking lots that will provide satisfactory service for many years with minimum maintenance. Guide includes information on site investigation, thickness determination, design of joints and other details, paving operations, and quality assurance procedures during construction. Maintenance and repair are also discussed.
10.14359/3184
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