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Aggregate Physical Properties

Buildex Expanded Shale Lightweight Aggregate
New Market Missouri Plant

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Our New Market plant is located one mile south of the town of New Market, Missouri on State Highway 371. This plant is located near a large deposit of Weston shale that is used in production.


Table 1
Typical Physical Properties of Production Sizes
Buildex New Market MO Plant

Production Size Specific
Gravity (a)
Density,
lb/cu ft (b)
Percent
Absorption (c)
5/8" x 3/8" 1.10 38 18
3/8" x 1/4" 1.15 42 15
1/4" x 1/8" 1.20 44 12
1/8" x 0 1.80 58 8

(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
Typical Gradation of Production Sizes
Buildex New Market MO Plant
Cumulative Percent Retained

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.

 

Table 3
Typical Physical Properties of ASTM Blends
Buildex New Market MO 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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PDF format: New Market Properties (154 kb)