Amman, July 20 (Petra) – The Ministry of Public Works and Housing
said that its Laboratories and Quality Control Directorate detected
535 samples that did not meet technical specifications out of 2,289
samples tested in road and building projects during 2025, accounting
for 23.4% of the total.

The ministry said all materials and samples that fail to meet
technical requirements are handled through approved control
procedures, ensuring they are not used in projects unless corrective
measures are completed and compliance with specifications is
confirmed.

In remarks to the Jordan News Agency (Petra), the ministry explained
that these procedures include officially documenting test results,
notifying supervising engineers and contractors of non-compliance
cases, rejecting or suspending the use of materials until they are
corrected or replaced, and approving related works only after they
pass the required technical tests.

The ministry said the Laboratories and Quality Control Directorate is
a key component of its efforts to ensure the quality of
infrastructure projects by conducting laboratory and field tests on
construction materials and structural elements, verifying compliance
with approved standards, and carrying out field inspections and
random sampling throughout implementation stages.

It added that these measures contribute to reducing the use of
non-compliant materials, limiting technical defects and structural
risks, improving project quality and lifespan, and enhancing the
efficiency of public spending by reducing maintenance and repair
requirements.

As part of efforts to develop its operations, the ministry said it
has established a specialized laboratory for testing polymer-modified
asphalt mixtures (Superpave) and is working to include these tests
within the scope of international accreditation under ISO/IEC
17025:2017.

The ministry is also updating testing and calibration equipment,
developing technical staff, and studying the introduction of a
Laboratory Information Management System (LIMS) to improve sample
management and testing efficiency.

The ministry noted that the directorate continues to maintain
international accreditation for construction laboratories under
ISO/IEC 17025:2017 and applies the ISO 9001:2015 quality management
system, while expanding accredited testing services and implementing
training programs to support quality, safety, and sustainability in
ministry projects.

//Petra//WH