| STANDARD SPECIFICATION
FOR HARDROCK CONCRETE UNITS KNOWN AS CLASSIC
WALL CAP
SCOPE:
CLASSIC WALL CAPS AS MANUFACTURED BY STEPSTONE, INC. IN
SIZES AS SPECIFIED ON ARCHITECTURAL DRAWINGS IN ACCORDANCE WITH STEPSTONE,INC. STANDARD
DIMENSIONS.
MATERIALS:
A. SPECIFICATIONS FOR CONCRETE AGGREGATES SHALL CONFORM TO
ASTM C-33
B. SPECIFICATIONS FOR PORTLAND CEMENT SHALL CONFORM TO ASTM
C-150
CONCRETE STRENGTH:
THE AVERAGE CONCRETE TEST STRENGTH SHALL NOT BE LESS THAN
4,000 P.S.I. @ 28 DAYS WITH NO INDIVIDUAL UNIT TO BE LESS THAN 3,600 P.S.I.
ABSORPTION:
THE AVERAGE ABSORPTION OF THE TEST SAMPLES SHALL NOT BE
GREATER THAN 50/o WITH NO INDIVIDUAL UNIT GREATER THAN 7%.
PERMISSIBLE VARIATIONS IN DIMENSIONS:
LENGTH OR WIDTH OF UNITS SHALL NOT DIFFER BY MORE THAN +/-
3116 IN. FROM APPROVED SAMPLES. HEIGHTS OF UNITS SHALL NOT DIFFER BY MORE THAN +/- 1/4 IN.
FROM THE STANDARD DIMENSION.
VISUAL INSPECTION:
ALL UNITS SHALL BE SOUND AND FREE OF DEFECTS THAT WOULD
INTERFERE NTH THE PROPER PLACING OF THE UNIT OR IMPAIR THE STRENGTH OR PERMANENCE OF THE
CONSTRUCTION. MINOR CHIPPING INCIDENTAL TO THE USUAL METHODS OF MANUFACTURE AND FROM THE
CUSTOMARY METHODS OF HANDLING IN SHIPMENT AND DELIVERY, SHALL NOT BE DEEMED GROUNDS FOR
REJECTION. COLORS AND TEXTURE MAY VARY SLIGHTLY DUE TO THE NATURAL MATERIALS USED IN THE
MANUFACTURE OF THE PAVERS.
SAMPLING:
STEPSTONE, INC. WILL SUPPLY SAMPLES OF THE WALL CAP UNITS
TO THE CUSTOMER FOR APPROVAL PRIOR TO THE START OF PRODUCTION. THE REASON FOR THIS IS TO
DEMONSTRATE THE SLIGHT VARIATIONS IN COLOR AND TEXTURE OF THE NATURAL MATERIAL.
INSTALLATION:
CLASSIC WALL CAP UNITS TO BE INSTALLED IN ACCORDANCE WITH
STANDARD MASONRY PRACTICES. UNITS WILL BE INSTALLED LEVEL TO EACH OTHER. JOINT'S SHALL BE
GROUTED AND SPACED IN ACCORDANCE NTH DESIGN REQUIREMENTS. JOINTS SHOULD NOT EXCEED
1/2". TO ASSURE PROPER BONDING, WALL CAP UNITS SHOULD BE SET IN MORTAR OR ADHESIVE
THAT IS APPROPRIATE FOR BOTH CONCRETE AND WALL SUBSTRATE.
17025 S. MAIN ST. GARDENA, CA. 90248
(310)327-7474 FAX (310)327-0318
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