Sungshin Cement Obtains Technology Certification for "Ultra-Retain Concrete" That Maintains Workability for up to 5 Hours

Stable Workability Maintained Even During Long-Distance Transportation and On-Site Delays
Proven Performance in High-Temperature Conditions and Large-Scale Construction Sites

Sungshin Cement, a specialist in cement manufacturing, and its subsidiary Sungshin Remicon announced on August 27 that they have obtained technology certification from the Korea Concrete Institute for their "ultra-retain concrete" technology, which enables concrete to maintain its fluidity stably over extended periods.

The certified technology utilizes a combination of polycarboxylate-based high-performance water reducer and a gluconate-based retarder to retain the concrete's slump and workability for up to five hours. The technology certification granted by the Korea Concrete Institute is valid for five years, until August 24, 2031.

Recently, construction sites are facing longer lead times from production to placement of ready-mixed concrete due to factors such as traffic congestion, increased transport distances, and changing construction schedules. In particular, maintaining stable workability of concrete until placement has become a critical challenge in the summer, as workability can rapidly deteriorate over time in hot weather.

Sungshin Cement and Sungshin Remicon have developed a technology that retains the initial workability of concrete for extended periods, while still ensuring proper setting and strength development after placement. According to performance evaluations, the ultra-retain concrete maintained stable workability for up to five hours even under high-temperature conditions, while the measured compressive strength met the required design criteria.

The applicability of this technology in actual field conditions was also verified. Sungshin Cement explained that sufficient workability was maintained even after a certain period had elapsed post-production, and that normal strength development was also confirmed after placement. A Sungshin Cement representative stated, "This technology certification acknowledges our capabilities to provide prolonged workability and quality stability in concrete," adding, "We will continue to develop high-performance concrete solutions to meet the evolving construction environment and customer needs."

(출력 후 규칙 재검토:
- 회사명 Sungshin Cement 공식 영문명 확인, 화폐단위 필요 없음, HTML태그 및

구조 유지, 날짜 및 주요 수치 정확히 유지, 신조어 및 전문 용어 로마자표기 및 영어 번역 준수, 이름/지명/수량 등 모두 정확하게 반영함을 확인했습니다.)

This content was produced with the assistance of AI translation services.