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(a)
ASTM C 127 / C 128, bulk specific gravity.
(b) ASTM C 29, loose unit weight (density). (c) ASTM C 127 / C 128, 24 hour absorption. Table
2
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| Sieve | ||||
| 5/8" x 3/8" | 3/8" x 1/4" | 1/4" x 1/8" | 1/8" x 0 | |
| 3/4" | 0 | |||
| 1/2" | 22 | 0 | ||
| 3/8" | 82 | 3 | 0 | |
| No. 4 | 98 | 95 | 22 | 0 |
| No. 8 | 99 | 99 | 96 | 12 |
| No. 16 | 99 | 43 | ||
| No. 30 | 67 | |||
| No. 50 | 80 | |||
| No. 100 | 86 |
These production sizes can be sold as is but more often are blended before loading to meet appropriate industry specifications.
For producing pumpable structural lightweight concrete, the coarse blends like 1/2" x No. 4 and 3/8" x No. 8 are vacuum saturated at our plant prior to shipment. The fines (3/8" x 0 and 1/4" x 0) are pre-wetted while stockpiled at the concrete producers' plant.
| ASTM
Blend |
Specific Gravity (a) |
Density, lb/cu ft (b) |
Percent Absorption (c) |
Saturated Density, lb/cu ft |
| 3/4" x No. 4 | 1.15 | 43 | 30 | 54 (d) (e) |
| 1/2" x No. 4 | 1.15 | 43 | 25 | 54 (d) |
| 3/8" x No. 8 | 1.3 | 44 | 20 | 54 (d) (e) |
| 3/8" x 0 | 1.45 | 54 | 10 | 65 (f) |
| 1/4" x 0 | 1.45 | 54 | 10 | 65 (f) |
(a)
ASTM C 127 / C 128, bulk specific gravity.
(b) ASTM C 29, loose unit weight (density) @ normal 6% shipping
moisture content.
(c)
ASTM C127 / C 128, 24 hour water absorption at ambient pressure.
Please note that the 24 hour absorption figure is not appropriate
for use in determining moisture content of Buildex used in pumped
concrete.
(d)
Unit Weight (density) when vacuum saturated at Buildex plant for
concrete pump placement.
(e) 3/4" x No. 4 and 3/8" x No. 8 are available vacuum saturated
by advance special order
only.
(f)
The 3/8" x 0 and 1/4" x 0 fines are not available vacuum saturated; values for stockpile ambient saturated density
are shown for these materials.
Buildex aggregate is produced to meet or exceed applicable industry standards, including ASTM C330 "Standard Specification for Lightweight Aggregates for Structural Concrete" and ASTM C 331 "Standard Specification for Lightweight Aggregates for Concrete Masonry Units."
Links to Tables - Typical Gradation of Lightweight Aggregate Blended to Meet ASTM Gradations.
Structural Lightweight Concrete Aggregate
Lightweight Concrete Masonry Aggregate
Table
4 - Typical Blended
Aggregate Gradation
Lightweight Aggregates for Structural Concrete
ASTM C 330 - 3/4" x No. 4
Buildex New Market MO Plant
| Sieve |
Percent Retained |
Percent Passing | ||
| Typical Gradation | 3/4" x No. 4 Specification* | Typical Gradation | 3/4" x No. 4 Specification* | |
| 1" | 0 | 0 | 100 | 100 |
| 3/4" | 0 | 0-10 | 100 | 90-100 |
| 1/2" | 17 | --- | 83 | --- |
| 3/8" | 60 | 50-90 | 40 | 10-50 |
| No. 4 | 97 | 85-100 | 3 | 0-15 |
| No. 8 | 99 | --- | 1 | --- |
*ASTM C330 "Standard Specification for Lightweight Aggregates for Structural Concrete".
Table
5 -
Typical Blended
Aggregate Gradation
Lightweight Aggregates for Structural Concrete
ASTM C 330 - 1/2" x No. 4
Buildex New Market MO Plant
| Sieve |
Percent Retained |
Percent Passing | ||
| Typical Gradation | 1/2" x No. 4 Specification* | Typical Gradation | 1/2" x No. 4 Specification* | |
| 3/4" | 0 | 0 | 100 | 100 |
| 1/2" | 9 | 0-10 | 91 | 90-100 |
| 3/8" | 35 | 20-60 | 65 | 40-80 |
| No. 4 | 96 | 80-100 | 4 | 0-20 |
| No. 8 | 99 | 90-100 | 1 | 0-10 |
*ASTM C330 "Standard Specification for Lightweight Aggregates for Structural Concrete"
Table 6
-
Typical Blended
Aggregate Gradation
Lightweight Aggregates for Structural Concrete
ASTM C 330 - 3/8" x No. 8
Buildex New Market MO Plant
| Sieve |
Percent Retained |
Percent Passing | ||
| Typical Gradation | 3/8" x No. 8 Specification* | Typical Gradation | 3/8" x No. 8 Specification* | |
| 1/2" | 0 | 0 | 100 | 100 |
| 3/8" | 3 | 0-20 | 97 | 80-100 |
| No. 4 | 85 | 60-95 | 15 | 5-40 |
| No. 8 | 99 | 80-100 | 1 | 0-20 |
| No. 16 | 99 | 90-100 | 1 | 0-10 |
*ASTM C330 "Standard Specification for Lightweight Aggregates for Structural Concrete"
Table
7 -
Typical Blended
Aggregate Gradation
Lightweight Aggregates for Structural Concrete
ASTM C 330 - 3/8" x 0
Buildex New Market MO Plant
| Sieve |
Percent Retained |
Percent Passing | ||
| Typical Gradation | 3/8" x 0 Specification* | Typical Gradation | 3/8" x 0 Specification* | |
| 1/2" | 0 | 0 | 100 | 100 |
| 3/8" | 0 | 0-10 | 100 | 90-100 |
| No. 4 | 12 | 10-35 | 88 | 65-90 |
| No. 8 | 45 | 35-65 | 55 | 35-65 |
| No. 16 | 65 | --- | 35 | --- |
| No. 30 | 80 | --- | 20 | --- |
| No. 50 | 88 | 75-90 | 12 | 10-25 |
| No. 100 | 92 | 85-95 | 8 | 5-15 |
*ASTM C330 "Standard Specification for Lightweight Aggregates for Structural Concrete".
Table
8 -
Typical Blended
Aggregate Gradation
Lightweight Aggregates for Structural Concrete
ASTM C 330 - 1/4" x 0
Buildex New Market MO Plant
| Sieve |
Percent Retained |
Percent Passing | ||
| Typical Gradation | 1/4" x 0 Specification* | Typical Gradation | 1/4" x 0 Specification* | |
| 3/8" | 0 | 0 | 100 | 100 |
| No. 4 | 5 | 0-15 | 95 | 85-100 |
| No. 8 | 30 | --- | 70 | --- |
| No. 16 | 55 | 20-60 | 45 | 40-80 |
| No. 30 | 74 | --- | 26 | --- |
| No. 50 | 84 | 65-90 | 16 | 10-35 |
| No. 100 | 89 | 75-95 | 11 | 5-25 |
*ASTM C330 "Standard Specification for Lightweight Aggregates for Structural Concrete"
Table
9 -
Typical Blended
Aggregate Gradation
Lightweight Aggregates for Concrete Masonry
ASTM C 331 - 1/4" x 0
Buildex New Market MO Plant
| Sieve |
Typical Cumulative Grading |
Typical Individual Grading | Suggested Individual Grading* |
| 3/8" | 0 | 0 | 0-2 |
| No. 4 | 5 | 5 | 0-10 |
| No. 8 | 30 | 25 | 15-35 |
| No. 16 | 55 | 25 | 15-35 |
| No. 30 | 74 | 19 | 5-20 |
| No. 50 | 84 | 10 | 5-15 |
| No. 100 | 89 | 5 | 5-15 |
| Pan | 100 | 11 | 8-20 |
*ASTM C331 "Standard Specification for Lightweight Aggregates for Concrete Masonry Units."
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