The goal of this certification program is to ensure that knowledgeable
contractors are selected to place the product and thereby minimize the
chance for failure.
The program is designed to be administered locally by local sponsoring
groups in conjunction with planned training sessions or demonstrations of
pervious concrete placement. NRMCA provides certification exams and
performance evaluations to approved local sponsoring groups for
administering the certification. For the current list of local sponsoring
groups, CLICK
HERE.
Three levels of certification are available:
A Pervious Concrete
Technician is a person who
demonstrated knowledge about proper procedures to place, compact,
finish, edge, joint, cure and protect pervious concrete pavements, but
who lacks the requisite field experience to qualify as a pervious
concrete Installer or Craftsman.
A Pervious Concrete
Installer is a person who has
demonstrated the ability to place, compact, finish, edge, joint, cure
and protect pervious concrete pavements and has documented a limited
project-based field experience in placing pervious concrete.
A Pervious Concrete
Craftsman is a person who has
demonstrated the ability to place, compact, finish, edge, joint, cure
and protect pervious concrete pavements and has documented a higher
level of field time-based experience in placing pervious concrete.
Scope and Knowledge
The program requires knowledge in the following areas of concrete
construction:
Basic concrete technology
Pervious concrete materials and
mix proportioning
Proper use of tools and
equipment
General design principles of
pervious concrete pavements
The National Ready Mixed Concrete Association (NRMCA) Pervious Concrete
Contractor certification program includes certification of personnel at the
following levels:
Pervious
Concrete Technician
Pervious
Concrete Installer
Pervious Concrete
Craftsman
Pervious Concrete Technician:
Personnel achieving the following
criteria will obtain certification as a Pervious Concrete Technician.
Pass the NRMCA Pervious
Concrete Contractor Certification Written Examination with a score of
75% or greater administered by a Local Sponsoring Group approved by
NRMCA.
Pervious Concrete Installer:
Personnel achieving the following
criteria will obtain certification as a Pervious Concrete Installer.
Pass the NRMCA Pervious
Concrete Contractor Certification Written Examination with a score of
75% or greater administered by a Local Sponsoring Group approved by
NRMCA
Possess a current ACI Flatwork
Finisher Technician or Craftsman certification at the time of
application
Complete a Performance
Evaluation administered by a Local Sponsoring Group approved by NRMCA –
Form PCC10.
Provide project experience
documentation of successful construction of a minimum of 3 projects with
a total area exceeding 10,000 square feet (1000 m²) –
Form PCC8.
Pervious Concrete Craftsman:
Personnel achieving the following
criteria will obtain certification as a Pervious Concrete Craftsman.
Pass the NRMCA Pervious
Concrete Contractor Certification Written Examination with a score of
75% or greater administered by a Local Sponsoring Group approved by
NRMCA
Possess a current ACI Flatwork
Finisher Technician or Craftsman certification at the time of
application
Work Experience:
OPTION A: Complete a
Performance Evaluation administered by a Local Sponsoring Group
approved by NRMCA and document work experience constructing pervious
concrete pavement exceeding 1500 hours – Forms
PCC10 and
PCC9,
respectively.
OR
OPTION B: Provide
documentation of work experience constructing pervious concrete
pavements exceeding 3000 hours –
Form PCC9.
NRMCA Pervious Concrete Contractor
Certifications shall be valid for a period of five [5] years. The expiration
date for the certification shall be based on the date of completion of the
written examination.
Exam Information
The two-hour written examination is "closed book," consisting of
approximately 50 multiple-choice questions. The passing grade for the
written examination is 75%.
During the performance evaluation, each examinee must demonstrate procedures
for placing, compacting, finishing, edging, jointing and beginning curing a
pervious concrete slab. The examiner will observe and evaluate the
techniques used and record passing or failing grades on the various
individual procedures. A passing grade is defined as "no significant
variation from proper procedure and no more than two variations from proper
technique in the use of the tools."
The project experience or work experience must include placing,
consolidation, finishing, edging, jointing and curing of pervious concrete,
and must be documented on the
Installer Application form or the
Craftsman
Application.
Re-Certification
Recertification is required every five years and requires successful
completion of a written examination.
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