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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 1-5 of 14 Abstracts search results

Document: 

SP14

Date: 

March 1, 1978

Author(s):

Editor: Thomas J. Reading

Publication:

Symposium Papers

Volume:

14

Abstract:

SP14

This classic collection of 13 papers on shotcreting has been reprinted. Prepared as a guide for both field personnel who apply shotcrete as well as for engineers who specify its use, Shotcreting presents data on engineering properties of both dry-mix and wet-mix shotcrete made with coarse and lightweight aggregates as well as sand. Quality control methods and preparation of test specimens are discussed. Equipment capabilities are covered in detail. Shotcrete for repairs, use of shotcrete in tunnel linings and other underground support, shotcrete tanks, lightweight shotcrete, and the gunning of refractory castables receive attention.

Includes William R. Lorman's Engineering Properties of Shotcrete

Lorman's report supplements data on current practice in shotcreting with a review of the past 55 years of laboratory and field experience with pneumatically applied mortars and concretes. Emphasizes data on strength, elasticity and other physical properties of the hardened shotcrete. Compares properties of fine-aggregate shotcrete and coarse aggregate shotcrete and presents recommendations for mixing and testing methods.

DOI:

10.14359/14066

Document: 

SP14-06

Date: 

March 1, 1978

Author(s):

Paul J. Fluss and Glenn E. Gibson

Publication:

Symposium Papers

Volume:

14

Abstract:

Piers and wharves built from 1915 to 1917 in the San Francisco harbor were recently repaired with dry-mix shotcrete. Sequence and method of work-much of it within the tidal range of San Francisco Bay- are described. Asphaltic curing and coating materials were applied after shotcreting to prolong the life of material in the splash zone. Quality control specimens were cored from shotcreted test panels.

DOI:

10.14359/6806

Document: 

SP14-07

Date: 

March 1, 1978

Author(s):

Oswin Keifer, Jr.

Publication:

Symposium Papers

Volume:

14

Abstract:

Multiple layers of shotcrete were

DOI:

10.14359/6807

Document: 

SP14-08

Date: 

March 1, 1978

Author(s):

M. J. Dykmans

Publication:

Symposium Papers

Volume:

14

Abstract:

Recommended mix proportions and application techniques for floors, walls, and domes of shotcrete tanks are presented. Special practices required to assure a dense covering of shotcrete over prestressing wires are explained. Pre-ferred techniques for proper water curing of shotcrete are emphasized.

DOI:

10.14359/6808

Document: 

SP14-09

Date: 

March 1, 1978

Author(s):

Francis X. Crowley

Publication:

Symposium Papers

Volume:

14

Abstract:

Noting the developments in the history of prestressed shotcrete tanks, the author emphasizes current practice for shotcreted prestressed tanks with steel diaphragms. The entire construction sequence from site preparation to surface finishing of the completed tank is described, including: floor construction followed by placing one of three types of floor-wall joints; erection and sealing of the steel diaphragm; shotcreting inside and outside core walls against. the diaphragm; constructing the wall-dome joint, erecting formwork, and shooting the dome; winding the prestressing wire; shooting the cover coat; and finally backfilling and finishing. Four rules for shooting a successful cover coat that will protect wire against corrosion are given, and use of test specimens cut from gunned panels is recommended.

DOI:

10.14359/6809

123

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