CATBALOGAN CITY, Samar -– Concerns have emerged over the early cracking of the newly rehabilitated road along AH 21 (Asian Highway 21) in Barangay Socorro, this city, which appeared only 21 days after it was opened to traffic.
According to Dr. Ronald Orale, Vice President for Research and Extension Services of Samar State University (SSU), the damage can be attributed to various factors including poor engineering practices, substandard materials, and environmental conditions.
Dr. Orale explained that inadequate subgrade and base preparation could have contributed to the road's weakness. Poor drainage and water management were also cited as probable causes, which may have led to water accumulation beneath the pavement, compromising its structural integrity. Furthermore, the rush in construction and improper curing of concrete are seen as significant contributors to the issue.
The curing period used from February 18 to March 7 was likely insufficient. If humid or wet conditions prevailed during this period, it could have diluted or washed away curing compounds essential for concrete strength development. If the road was opened prematurely, the underdeveloped concrete would be less capable of bearing heavy loads, making it susceptible to cracks.
Another issue raised was early traffic loading. For roads expected to support heavy vehicles, a 28-day curing period is considered standard. However, it appears this was not strictly followed.
Dr. Orale also pointed out that improper concrete mix or poor workmanship could be responsible, along with possible structural design deficiencies that failed to consider real-world loading and environmental factors.
Orale emphasized the importance of proper timing, especially avoiding construction during rainy or humid seasons unless adequate waterproofing, compaction, and curing measures are implemented. He also recommended strict quality control measures such as moisture content testing of the base, slump testing, and curing verification.
Avoiding premature opening of the road is crucial to ensure it meets the required strength development before exposure to traffic.
He urged a thorough review of the pavement design and called for accountability from the Department of Public Works and Highways (DPWH) and local government unit (LGU) project engineers.
Orale stated that contractors must be penalized for defective work, emphasizing the need for careful monitoring and adherence to standards.
“Let’s demand accountability. Public infrastructure must be built to last. We deserve better,” Orale asserted, stressing the importance of ensuring that public projects are of high quality and built to endure over time.
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