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Warren council hears engineer update on spalling in recent concrete road projects, options include grinding, sealing or extended warranties
Summary
City engineering staff told the council that spalling on 2022 residential concrete projects is largely surface-level and structurally sound; staff has put contractors on notice and is exploring remedies including sealing, diamond grinding and possible warranty extensions before January 2026 expirations.
Kevin Fisher, a resident, urged the Warren City Council to demand stronger quality control and on-site slump testing after driving the rebuilt Cosgrove neighborhood and seeing surface erosion and cracking along curbs and drive aprons.
At the council’s request, engineering staff member Miss Gapschas briefed the council on a statewide spalling issue that affected many municipal concrete pours after a 2022 mix change that increased limestone content. "Only the top one-eighth inch of concrete has spalled in certain areas for projects poured in 2022," she said, adding that core samples show compressive strengths of 4,500 PSI or greater against the city minimum of 3,500 PSI.
The engineering update explained why staff considers the problem largely…
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