Materials

Concrete Sand (C-33)

Natural fine aggregate from river deposits, washed and processed to meet ASTM C33.

Material appearance

Concrete Sand (C-33) as supplied — **Material as supplied**Color, moisture and actual texture

Concrete Sand (C-33) separated by sieve size — **Gradation breakdown**Material separated by sieve size

Gradation report

Sieve	Spec limits	Current result
3/8 in (9.5 mm)	100	100
No. 4 (4.75 mm)	95–100	100
No. 8 (2.36 mm)	80–100	85
No. 16 (1.18 mm)	50–85	65
No. 30 (600 µm)	25–60	45
No. 50 (300 µm)	5–30	20
No. 100 (150 µm)	0–10	7
No. 200 (75 µm)	0–3	2

Physical properties

Property	Test value	Required spec.
Fineness Modulus	2.78	2.3–3.1
Specific Gravity	2.57	2.55–2.65
Absorption	1.2%	0.5%–2.0%
Soundness	6%	15% max
Sand Equivalent	88	80 min

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Cyclone Sand

Washed and processed natural fine aggregate for hot-mix asphalt concrete applications meeting TxDOT Item 341 requirements.

Material appearance

Cyclone Sand as supplied — **Material as supplied**Color, moisture and actual texture

Gradation report

Sieve	Spec limits	Current result
3/8 in (9.5 mm)	100	100
No. 8 (2.36 mm)	70–100	99
No. 200 (75 µm)	0–30	6

Physical properties

Property	Test value	Required spec.
Linear Shrinkage	3% maximum	1.9%
Sand Equivalent	45 minimum	45%

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Masonry Sand

Natural fine aggregate, washed and processed to meet ASTM C144 requirements for masonry mortar and concrete applications.

Material appearance

Masonry Sand as supplied — **Material as supplied**Color, moisture and actual texture

Masonry Sand separated by sieve size — **Gradation breakdown**Material separated by sieve size

Technical sheet

Material classification: Natural washed and processed fine aggregate
Specification: ASTM C144
Intended uses: Masonry mortar
Source: Natural fine aggregate
Production: Washed and processed to meet ASTM C144

Gradation report

Sieve	Spec limits	Current result
No. 4 (4.75 mm)	100	100
No. 8 (2.36 mm)	95–100	100
No. 16 (1.18 mm)	70–100	98
No. 30 (600 µm)	40–75	70
No. 50 (300 µm)	10–35	33
No. 100 (150 µm)	2–15	7
No. 200 (75 µm)	0–5	2

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Bank Sand

Natural bank sand produced from local deposits for general construction applications.

Material appearance

Bank Sand as supplied — **Material as supplied**Color, moisture and actual texture

Technical sheet

Material classification: Processed natural bank sand — select fill
Specification: Producer specification — project requirements should be confirmed before use
Intended uses: Pipe bedding; general fill; landscaping; earthwork; engineered embankments
Source: Natural bank sand deposit
Production: Processed for select-fill and general construction applications
Testing: No laboratory test results or gradation limits are provided in the current Product Specification Sheet

Physical properties

Property	Test value	Required spec.
Material Type: Natural bank sand	—	—
Color: Tan to brown	—	—
Moisture: Natural	—	—

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1″ Gravel (#57 Gravel)

Natural washed and graded river rock meeting ASTM C33 size No. 57.

Material appearance

1″ Gravel (#57 Gravel) as supplied — **Material as supplied**Color, moisture and actual texture

1″ Gravel (#57 Gravel) separated by sieve size — **Gradation breakdown**Material separated by sieve size

Gradation report

Sieve	Spec limits	Current result
1½ in. (37.5 mm)	100	100
1 in. (25.0 mm)	95–100	97
½ in. (12.5 mm)	25–60	50
No. 4 (4.75 mm)	0–10	3
No. 8 (2.36 mm)	0–5	0
No. 200 (75 µm)	0–1	0

Physical properties

Property	Test value	Required spec.
Abrasion	50% maximum	23%
Specific Gravity	2.55–2.70	2.57
Absorption	0.5%–2.0%	0.37%
Soundness	18% maximum	9%
Material finer than No. 200 sieve by washing	1.5% maximum	0.9%

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Pea Gravel (3/8″)

Natural river rock, washed and graded to meet ASTM C33 Size No. 89 requirements for ready-mix concrete.

Material appearance

Pea Gravel (3/8″) as supplied — **Material as supplied**Color, moisture and actual texture

Pea Gravel (3/8″) separated by sieve size — **Gradation breakdown**Material separated by sieve size

Gradation report

Sieve	Spec limits	Current result
½ in. (12.5 mm)	100	100
3/8 in. (9.5 mm)	90–100	97
No. 4 (4.75 mm)	20–55	50
No. 8 (2.36 mm)	5–30	20
No. 16 (1.18 mm)	0–10	5
No. 50 (300 µm)	0–5	1
No. 200 (75 µm)	0–1	0

Physical properties

Property	Test value	Required spec.
Abrasion	50% maximum	23%
Specific Gravity	2.55–2.70	2.55
Absorption	0.5%–2.0%	0.40%
Soundness	18% maximum	9%
Material finer than No. 200 sieve by washing	1.5% maximum	1.0%

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Bulk Rock (Oversize Rock 4″–8″)

Oversize rock for erosion control, drainage structures, slope protection, and heavy civil applications.

Material appearance

Bulk Rock (Oversize Rock 4″–8″) as supplied — **Material as supplied**Color, moisture and actual texture

Technical sheet

Material classification: Natural oversized river rock — rounded to sub-rounded
Specification: Producer nominal-size specification, approximately 4–8 inches
Intended uses: Drainage structures; slope stabilization; culvert outlets; erosion protection; decorative landscaping
Source: Natural river rock

Physical properties

Property	Test value	Required spec.
Nominal Size: Approximately 4–8 in.	—	—
Material: Natural river rock	—	—
Shape: Rounded to sub-rounded	—	—

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#4 Crushed Gravel

Crushed and graded river rock aggregate produced for hot-mix asphalt concrete and TxDOT surface-treatment applications.

Material appearance

#4 Crushed Gravel as supplied — **Material as supplied**Color, moisture and actual texture

#4 Crushed Gravel separated by sieve size — **Gradation breakdown**Material separated by sieve size

Gradation report

Sieve	Spec limits	Current result
5/8 in. (16.0 mm)	0	0
½ in. (12.5 mm)	0–5	1
3/8 in. (9.5 mm)	20–45	20
No. 4 (4.75 mm)	95–100	95
No. 8 (2.36 mm)	98–100	100

Physical properties

Property	Test value	Required spec.
Decantation	1.5 minimum	0.80
Los Angeles Abrasion	35 maximum	23
Soundness	25 maximum	0.40
Two Crushed Faces	85% minimum	96%
Flakiness Index	17% maximum	0%

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#5 Crushed Screenings

Crushed and graded river rock screenings produced for hot-mix asphalt concrete and TxDOT surface-treatment applications.

Material appearance

#5 Crushed Screenings as supplied — **Material as supplied**Color, moisture and actual texture

#5 Crushed Screenings separated by sieve size — **Gradation breakdown**Material separated by sieve size

Gradation report

Sieve	Spec limits	Current result
3/8 in. (9.5 mm)	100	100
No. 8 (2.36 mm)	70–100	77
No. 200 (75 µm)	0–30	14

Physical properties

Property	Test value	Required spec.
Linear Shrinkage	3% maximum	1.7%
Sand Equivalent	45% minimum	46%

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#67 Crushed Gravel

Crushed, washed and graded river rock aggregate meeting ASTM C33 Size No. 67 requirements for ready-mix concrete.

Material appearance

#67 Crushed Gravel as supplied — **Material as supplied**Color, moisture and actual texture

#67 Crushed Gravel separated by sieve size — **Gradation breakdown**Material separated by sieve size

Gradation report

Sieve	Spec limits	Current result
1 in. (25.0 mm)	100	100
¾ in. (19.0 mm)	90–100	93
3/8 in. (9.5 mm)	25–55	42
No. 4 (4.75 mm)	0–10	6
No. 8 (2.36 mm)	0–5	2
No. 200 (75 µm)	0–1	0

Physical properties

Property	Test value	Required spec.
Abrasion	50% maximum	23%
Specific Gravity	2.55–2.70	2.55
Absorption	0.5%–2.0%	0.40%
Soundness	18% maximum	9%
Material finer than No. 200 sieve by washing	1.5% maximum	0.80%

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Flexible Base (Item 247) — Crushed River Rock

Dense-graded blend of crushed river rock and natural fines designed for stable, highly compacted roadway bases, working surfaces and structural fill.

Material appearance

Flexible Base (Item 247) — Crushed River Rock as supplied — **Material as supplied**Color, moisture and actual texture

Flexible Base (Item 247) — Crushed River Rock separated by sieve size — **Gradation breakdown**Material separated by sieve size

Gradation report

Sieve	Spec limits	Current result
2½ in.	0	0
1¾ in.	0–10	0
7/8 in.	10–35	16
3/8 in.	30–65	59
No. 4 (4.75 mm)	45–65	72
No. 40 (425 µm)	65–90	90
No. 200 (75 µm)	85–95	95

Physical properties

Property	Test value	Required spec.
Liquid Limit	N.P. = 0	40 maximum
Plasticity Index	N.P. = 0	10 maximum
Wet Ball Mill	36	40 maximum (Grades 1–2)
Wet Ball Mill — increase passing No. 40	6	20 maximum (Grades 1–2)

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Select Fill Dirt

Processed select fill suitable for engineered embankments, building pads, roadway construction and general fill.

Material appearance

Select Fill Dirt as supplied — **Material as supplied**Color, moisture and actual texture

Technical sheet

Material classification: Processed select fill
Specification: Producer specification — Liquid Limit 35 maximum; Plasticity Index 8–20
Intended uses: General fill; building pads; roadway embankments; utility trench backfill; site development
Source: Locally sourced select-fill material
Production: Processed for engineered embankment and general fill applications
Testing: The current Product Specification Sheet provides acceptance limits but no project-specific laboratory results

Physical properties

Property	Test value	Required spec.
Liquid Limit	35 maximum	—
Plasticity Index	8–20	—

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Top Soil (Sandy Loam)

Natural screened topsoil produced from locally sourced materials and free of oversized rock, roots and debris.

Material appearance

Top Soil (Sandy Loam) as supplied — **Material as supplied**Color, moisture and actual texture

Technical sheet

Material classification: Natural screened topsoil
Specification: Producer description — free of oversized rock, roots and debris
Intended uses: Final grading; landscaping; lawn establishment; planting beds; general backfill; erosion control
Source: Locally sourced natural materials
Production: Screened to remove oversized rock, roots and debris
Testing: No laboratory test results, organic-content analysis or gradation limits are included in the current Product Specification Sheet

Physical properties

Property	Test value	Required spec.
Material Type: Natural screened topsoil	—	—
Color: Brown to dark brown	—	—
Moisture: Natural	—	—

Download technical data sheet Download gradation report

The Capacity to Deliver

Concrete Sand (C-33)

Material appearance

Gradation report

Physical properties

Cyclone Sand

Material appearance

Gradation report

Physical properties

Masonry Sand

Material appearance

Technical sheet

Gradation report

Bank Sand

Material appearance

Technical sheet

Physical properties

1″ Gravel (#57 Gravel)

Material appearance

Gradation report

Physical properties

Pea Gravel (3/8″)

Material appearance

Gradation report

Physical properties

Bulk Rock (Oversize Rock 4″–8″)

Material appearance

Technical sheet

Physical properties

#4 Crushed Gravel

Material appearance

Gradation report

Physical properties

#5 Crushed Screenings

Material appearance

Gradation report

Physical properties

#67 Crushed Gravel

Material appearance

Gradation report

Physical properties

Flexible Base (Item 247) — Crushed River Rock

Material appearance

Gradation report

Physical properties

Select Fill Dirt

Material appearance

Technical sheet

Physical properties

Top Soil (Sandy Loam)

Material appearance

Technical sheet

Physical properties

Ready to Get Material?

Sales Director: Javier Quintanilla

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