Shotcrete Quality Control and Testing for an Underground ... - saimm
Shotcrete Quality Control and Testing for an Underground ... - saimm
Shotcrete Quality Control and Testing for an Underground ... - saimm
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Limits <strong>for</strong> Deleterious Subst<strong>an</strong>ces <strong><strong>an</strong>d</strong><br />
Physical Properties of Aggregates<br />
CSA Test<br />
Method<br />
A23.2-3A<br />
A23.2-4A<br />
A23.2-5A<br />
A23.2-13A<br />
A23.2-23A<br />
A23.2-29A<br />
A23.2-16A<br />
A23.2-9A<br />
Property<br />
St<strong><strong>an</strong>d</strong>ard Requirements<br />
Clay lumps<br />
Low-density gr<strong>an</strong>ular materials<br />
Material finer th<strong>an</strong> 80 µm<br />
Flat <strong><strong>an</strong>d</strong> elongated particles<br />
Procedure A, ratios 4:1<br />
Micro-Deval test<br />
Unconfined freeze-thaw test<br />
Impact <strong><strong>an</strong>d</strong> abrasion loss<br />
MgSO 4 soundness loss<br />
Maximum Percentage by<br />
Mass of Total Sample<br />
Fine Aggregate<br />
1<br />
0.5<br />
3.0<br />
-<br />
20<br />
-<br />
-<br />
16<br />
Coarse<br />
Aggregate<br />
0.25<br />
0.5<br />
1.0<br />
20<br />
17<br />
6<br />
50<br />
12
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