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Laboratory Evaluation of Cemented Paste Backfill Shear Strength Development Up to 600 kPa.

紀錄類型:	書目-電子資源 : Monograph/item
正題名/作者:	Laboratory Evaluation of Cemented Paste Backfill Shear Strength Development Up to 600 kPa./
作者:	Yue, Wendal Victor.
面頁冊數:	1 online resource (118 pages)
附註:	Source: Masters Abstracts International, Volume: 83-10.
Contained By:	Masters Abstracts International83-10.
標題:	Mining. -
電子資源:	http://pqdd.sinica.edu.tw/twdaoapp/servlet/advanced?query=28961818click for full text (PQDT)
ISBN:	9798209905059

Laboratory Evaluation of Cemented Paste Backfill Shear Strength Development Up to 600 kPa.
Yue, Wendal Victor.

Laboratory Evaluation of Cemented Paste Backfill Shear Strength Development Up to 600 kPa. - 1 online resource (118 pages)

Source: Masters Abstracts International, Volume: 83-10.

Thesis (M.A.S.)--University of Toronto (Canada), 2022.

Includes bibliographical references

Cemented Paste Backfill (CPB) is increasingly favoured as a backfill method in underground mining. The mechanical behaviour of CPB is critical for a rational mix design. This study focused on shear strength development of CPB using a laboratory vane apparatus, complemented by other assessments of CPB's properties including set times, and changes in Electrical Conductivity. The effects of vane insertion and shearing rate were studied. A comparison was made between the laboratory vane shear strength (LVSS) and unconfined compressive strength (UCS). A constant relationship between LVSS and UCS was found to depend on mix design, but they did not follow the assumption of undrained clay behaviour. The experimental results suggest that the laboratory vane test can be used reliably on relatively soft materials, thereby giving a shear strength index for CPB. However, more work is required to determine how this measured vane shear strength is best used for backfill design.

Electronic reproduction.
Ann Arbor, Mich. :
ProQuest,
2023

Mode of access: World Wide Web

ISBN: 9798209905059Subjects--Topical Terms:

3544442
Mining.
Subjects--Index Terms:

Cemented paste backfillIndex Terms--Genre/Form:

542853
Electronic books.

Laboratory Evaluation of Cemented Paste Backfill Shear Strength Development Up to 600 kPa.
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500 $a Source: Masters Abstracts International, Volume: 83-10.
500 $a Advisor: Grabinsky, Murray.
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504 $a Includes bibliographical references
520 $a Cemented Paste Backfill (CPB) is increasingly favoured as a backfill method in underground mining. The mechanical behaviour of CPB is critical for a rational mix design. This study focused on shear strength development of CPB using a laboratory vane apparatus, complemented by other assessments of CPB's properties including set times, and changes in Electrical Conductivity. The effects of vane insertion and shearing rate were studied. A comparison was made between the laboratory vane shear strength (LVSS) and unconfined compressive strength (UCS). A constant relationship between LVSS and UCS was found to depend on mix design, but they did not follow the assumption of undrained clay behaviour. The experimental results suggest that the laboratory vane test can be used reliably on relatively soft materials, thereby giving a shear strength index for CPB. However, more work is required to determine how this measured vane shear strength is best used for backfill design.
533 $a Electronic reproduction. $b Ann Arbor, Mich. : $c ProQuest, $d 2023
538 $a Mode of access: World Wide Web
650 4 $a Mining. $3 3544442
653 $a Cemented paste backfill
653 $a Electrical conductivity
653 $a Laboratory tests
653 $a Unconfined compression test
653 $a Vane test
653 $a Vicat needle test
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