ASTM Certification at St. Vrain Block is held in very high regard. Quality has been the foundation of our reputation since 1946.

Dealers, retail customers, and general contractors rely on the quality of St. Vrain Block's products.

Depending on the quantity needed, when particular features are desired, such as weight classification, higher compressive strength, surface textures, finish, color, or other special features, St. Vrain Block can usually fulfill the request.

Please contact us with your special requests.

Our 35-acre facility allows us the space to maintain large quantities of a diverse inventory.

Our interlocking concrete paver products surpass the requirements of ASTM C936 for construction of paved surfaces.

Our concrete block retaining wall unit products also surpass the requirements of ASTM C1372 which identifies the specifications of concrete in the units of block used in construction of mortarless segmental retaining walls.

The above photo shows the block being delivered from our automatic cuber. The pallets are then banded and brought to the yard.

Some of our products are hand stacked. Shown above are rows of Lawn Edgers ready for banding.

ASTM International Standards Certifications

astm international logo

St. Vrain Block holds multiple certifications of quality issued by the ASTM International Standards organization.

The following information is provided to assist our visitors for reference only. All ASTM Standards and documentation must be purchased directly from the ASTM International Standards office. To purchase ASTM International Standards documentation, please visit the official ASTM International Standards website: http://www.astm.org

•  ASTM C1372 identifies the specifications for retaining wall units of concrete which are intended for use in the construction of mortarless segmental retaining walls.

•  ASTM C936 identifies the requirements for interlocking concrete pavers manufactured for the construction of paved surfaces.

•  ASTM C1262-10 identifies the standard test method for evaluating the freeze-thaw durability of dry-cast segmental retaining wall units and related concrete units.

•  ASTM C1491-03 outlines the standard specifications for concrete roof pavers.

ASTM International Standards C1372
Specification for Dry-Cast Segmental Retaining Wall Units

Abstract

This specification covers dry–cast segmental retaining wall units of concrete, machine–made from hydraulic cement, water, and suitable mineral aggregates with or without the inclusion of other materials. The units are intended for use in the construction of mortarless segmental retaining walls. The material composition of retaining wall units consists of cementitious materials like portland cement and its modified form, limestone, hydraulic cement, blended hydraulic cement, pozzolans, blast furnace slag cement, aggregates, and other constituents which include air-entraining agents, coloring pigments, integral water repellents, and finely ground silica. All units shall be sound and free of cracks or other defects that interfere with the proper placement of the unit or significantly impair the strength or permanence of the construction.

This abstract is a brief summary of the referenced standard. It is informational only and not an official part of the standard; the full text of the standard itself must be referred to for its use and application. ASTM does not give any warranty express or implied or make any representation that the contents of this abstract are accurate, complete or up to date.

1. Scope

1.1 This specification covers dry–cast segmental retaining wall units of concrete, machine–made from hydraulic cement, water, and suitable mineral aggregates with or without the inclusion of other materials. The units are intended for use in the construction of mortarless segmental retaining walls.
Note 1 – When particular features are desired, such as density classification, higher compressive strength, surface texture, finish, color, or other special features, such properties should be specified separately by the purchaser. Suppliers should be consulted as to availability of units having the desired features.

1.2 The text of this standard references notes and footnotes which provide explanatory material. These notes and footnotes (excluding those in tables and figures) shall not be considered as requirements of the standard.

1.3 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.

2. Referenced Documents

ASTM Standards:
C33 Specification for Concrete Aggregates
C140 Test Methods for Sampling and Testing Concrete Masonry Units and Related Units
C150 Specification for Portland Cement
C331 Specification for Lightweight Aggregates for Concrete Masonry Units
C595 Specification for Blended Hydraulic Cements
C618 Specification for Coal Fly Ash and Raw or Calcined Natural Pozzolan for Use in Concrete
C989 Specification for Slag Cement for Use in Concrete and Mortars
C1157 Performance Specification for Hydraulic Cement
C1232 Terminology of Masonry
C1262 Test Method for Evaluating the Freeze-Thaw Durability of Dry-Cast Segmental Retaining Wall Units and Related Concrete Units

Index Terms:
absorption; aggregates; cementitious materials; compressive strength; concrete masonry units; density classification; dimensions; durability; Building materials/applications--specifications; Cement materials/applications--specifications; Retaining walls; Segmental retaining wall units; Wall construction--specifications; Walls--specifications;

ICS Code:
91.060.10 (Walls. Partitions. Facades)
DOI: 10.1520/C1372-11
ASTM International is a member of CrossRef.

pavers patio stones retaining wall blocks      

ASTM International Standards C936 - 936 M
Specification for Interlocking Concrete Pavers for the Construction of Paved Surfaces

1. Scope

1.1 This specification covers the requirements for interlocking concrete pavers manufactured for the construction of paved surfaces.

1.2 When particular features are desired, such as weight classification, higher compressive strength, surface textures, finish, color, or other special features, such properties should be specified by the purchaser. Local sellers, however, should be consulted as to availability of units having the desired features.

1.3 The values stated in either SI units or inch-pound units are to be regarded separately as standard. The values stated in each system may not be exact equivalents; therefore, each system shall be used independently of the other. Combining values from the two systems may result in non-conformance with the standard.

2. Referenced Documents

ASTM Standards:
C33 Specification for Concrete Aggregates
C140 Test Methods for Sampling and Testing Concrete Masonry Units and Related Units
C150 Specification for Portland Cement
C207 Specification for Hydrated Lime for Masonry Purposes
C260 Specification for Air-Entraining Admixtures for Concrete
C331 Specification for Lightweight Aggregates for Concrete Masonry Units
C418 Test Method for Abrasion Resistance of Concrete by Sandblasting
C494/C494M Specification for Chemical Admixtures for Concrete
C595 Specification for Blended Hydraulic Cements
C618 Specification for Coal Fly Ash and Raw or Calcined Natural Pozzolan for Use in Concrete
C979 Specification for Pigments for Integrally Colored Concrete
C989 Specification for Slag Cement for Use in Concrete and Mortars
C1157 Performance Specification for Hydraulic Cement
C1240 Specification for Silica Fume Used in Cementitious Mixtures
C1645 Test Method for Freeze-thaw and De-icing Salt Durability of Solid Concrete Interlocking Paving Units

Index Terms:
Concrete construction materials/applications--specifications; Interlocking concrete paving units; Pavement surfaces--specifications; Precast concrete products--specifications;

ICS Code:
93.080.20 (Road construction materials)
DOI: 10.1520/C0936_C0936M-09
ASTM International is a member of CrossRef.

pavers patio stones retaining wall blocks      

ASTM International Standards C1262 - 10
Standard Test Method for Evaluating the Freeze-Thaw Durability of Dry-Cast Segmental Retaining Wall Units and Related Concrete Units

Significance and Use

The procedure described in this test method is intended to determine the effects of freezing and thawing on SRW and related units in the presence of water or saline solution..

The procedure is not intended to provide a quantitative measure to determine an expected length of service for a specific type of concrete unit.
Note 2 – The testing laboratory performing this test method should be evaluated in accordance with Practice C1093.

1. Scope

1.1 This test method covers the resistance to freezing and thawing of dry-cast segmental retaining wall (SRW) units (see Specification C1372) and related concrete units. Units are tested in a test solution that is either water or 3 % saline solution depending on the intended use of the units in actual service.
Note 1 – Related concrete units include units such as hollow and solid concrete masonry units, concrete brick, and concrete roof pavers.

1.2 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.

1.3 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.

2. Referenced Documents

ASTM Standards:
C140 Test Methods for Sampling and Testing Concrete Masonry Units and Related Units
C1093 Practice for Accreditation of Testing Agencies for Masonry
C1232 Terminology of Masonry
C1372 Specification for Dry-Cast Segmental Retaining Wall Units

Index Terms:
absorption; compressive strength; dry-cast segmental retaining wall unit; freeze-thaw durability; freeze-thaw resistance; manufactured concrete units; Absorption; Compression testing--cement/concrete; Concrete masonry units; Durability--building materials/applications; Freezing and thawing--concrete/aggregate; Manufactured concrete/masonry units; Masonry units; Segmental retaining wall units;

ICS Code:
91.080.40 (Concrete structures)
DOI: 10.1520/C1262-10
ASTM International is a member of CrossRef.

pavers patio stones retaining wall blocks      

ASTM International Standards C1491 - 03(2009)
Standard Specification for Concrete Roof Pavers

Abstract

This specification covers concrete roof pavers that are machine-made from hydraulic cement, water, and suitable mineral aggregates with or without the inclusion of other materials, for use as roof ballast and protection of roof membranes. Requirements for ballast weight per unit area shall be specified separately. The average resistance to flexural load for three paver units and resistance to flexural load of each individual unit shall exceed the prescribed requirements. In areas where repeated freezing and thawing under saturated conditions occur, freeze-thaw durability shall be demonstrated by test or by proven field performance that the concrete roof paver units have adequate durability for the intended use. Minor cracks incidental to the usual method of manufacture or minor chipping resulting from customary methods of handling in shipment and delivery are not grounds for rejection. Compressive strength, flexural load, absorption, density, ballast weight, and dimensional tolerance shall be tested to meet the requirements prescribed.

This abstract is a brief summary of the referenced standard. It is informational only and not an official part of the standard; the full text of the standard itself must be referred to for its use and application. ASTM does not give any warranty express or implied or make any representation that the contents of this abstract are accurate, complete or up to date.

1. Scope

1.1 This specification covers concrete roof pavers that are machine-made from hydraulic cement, water, and suitable mineral aggregates with or without the inclusion of other materials, for use as roof ballast and protection of roof membranes.
Note 1 – The design of roof ballast systems for resisting wind uplift is beyond the scope of this specification. Building codes and other standards should be consulted in designing for wind uplift resistance.

1.2 The text of this standard references notes and footnotes that provide explanatory material. These notes and footnotes (excluding those in tables and figures) shall not be considered as requirements of the standard.

1.3 The values stated in inch-pound units are to be regarded as standard. The values given in parentheses are mathematical conversions to SI units that are provided for information only and are not considered standard.

1.4 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory limitations prior to use.

2. Referenced Documents

ASTM Standards:
C33 Specification for Concrete Aggregates
C140 Test Methods for Sampling and Testing Concrete Masonry Units and Related Units
C150 Specification for Portland Cement
C331 Specification for Lightweight Aggregates for Concrete Masonry Units
C595 Specification for Blended Hydraulic Cements
C618 Specification for Coal Fly Ash and Raw or Calcined Natural Pozzolan for Use in Concrete
C989 Specification for Slag Cement for Use in Concrete and Mortars
C1157 Performance Specification for Hydraulic Cement
C1209 Terminology of Concrete Masonry Units and Related Units
C1232 Terminology of Masonry
C1262 Test Method for Evaluating the Freeze-Thaw Durability of Dry-Cast Segmental Retaining Wall Units and Related Concrete Units

Index Terms:
absorption; aggregates; ballast weight; cementitious; compressive strength; concrete roof pavers; durability; limestone; portland cement; Concrete construction materials/applications--specifications; Concrete roofing/waterproofing materials--specifications; Roofing materials/applications--specifications; Roof pavers; Structural concrete--specifications;

ICS Code:
91.060.20 (Roofs)
DOI: 10.1520/C1491-03R09
ASTM International is a member of CrossRef.

pavers patio stones retaining wall blocks      


The Reference Library

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Product Brochures

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Quantity Estimate

Each project has unique characteristics or challenges. Using your measurements, we will provide an estimate of product quantity necessary for your project. Call us at 303-833-4144 or contact us online with your request.

Installation Tips

We can recommend various Landscape Professionals or, if you are the 'Do-It-Yourself' type, we provide these helpful installation instructions.

~ more install tips coming soon

Glossary of Terms

Every industry has quirky terms that can be confusing especially if the product names sound alike, but are actually not comparable at all in quality or intended use. Contact us if you have any questions.

Glossary of Terms

ASTM Certifications

The ASTM International Standards Certifications awarded to St. Vrain Block are held in very high regard. Quality has been the foundation of our reputation since 1946. Please review our ASTM Certifications page for more information.