人间正道是沧桑

一路一配方 沥青做成“定制款”_我的网站

A |     Most missing adults are found quickly, but gaps in the system can have deadly consequences                   Police search for Jang Mi-ran, a 37-year-old reported missing in May, at a palm farm in Hallim-eup, Jeju Island. Jang was found dead Monday. (Yonhap)The death of Jang Mi-ran after her missing-person case was allegedly closed on false grounds has renewed scrutiny of South Korea’s system for finding missing adults.South Korea tracks missing-person reports involving adults, but ordinary adult cases are not covered by the same legal framework that allows nationwide alerts, certain forms of location tracking and DNA testing for children, people with specified disabilities and people with dementia.More than 70,000 adults were reported missing each year between 2022 and 2025. Most cases were resolved quickly, with 89.4 percent closed within a day last year and 99 percent within a month, according to National Police Agency data.Of the 70,591 adult missing-person cases closed in 2025, 931 involved people who were found dead.Jang’s case has drawn attention to what can happen when a case is closed before a missing person’s safety has been confirmed.A Jeju police officer surnamed Bu is accused of falsely telling Jang’s boyfriend and family that she was safe but did not want to be found. Police have said they found no records showing that Bu contacted her.Bu is accused of making a similar false claim in another missing-person case involving a man in his 60s, who was also later found dead.The cases have revived a long-running debate over whether police need stronger legal authority to search for missing adults, and how far those powers should extend without infringing on privacy.Gaps in adult casesJang’s cousin reportedly went to Seoul’s Nowon Police Station on July 19 to request another search for her, about two months after Bu allegedly told the family that Jang had been contacted and was safe.Nowon officials reportedly questioned whether Jang, as an adult, might simply have left voluntarily.The high rate of quick case closures has raised concern that some adult cases are treated as routine disappearances. Bu handled and closed 298 missing-person cases during roughly 17 months on a missing-person team.Meanwhile, the number of cases ending in death is not insignificant. Between 2016 and 2025, 13,639 missing adults were eventually found dead, an average of about 1,364 a year. Thousands of long-term cases also remain unsolved.                   Police search for Jang Mi-ran, a 37-year-old reported missing in May, at a harbor in Jeju Island. Jang was found dead on Monday. (Yonhap)Police have fewer tools in ordinary adult cases.Nationwide missing-person alerts are generally sent out only for minors, people with certain disabilities and people with dementia. Of the 3,126 people found last year under that system, 696, or 22.3 percent, were located after reports from members of the public who had seen an alert.Police searches and investigations accounted for 39.2 percent of discoveries, according to a report jointly submitted by the National Police Agency and the Ministry of Health and Welfare.Ordinary missing adults generally do not qualify for such alerts.Police have used DNA testing since 2004 to identify missing children and other eligible groups. Ordinary adult cases are not covered by the same DNA collection and comparison framework.The scale of adult disappearances is also larger. About 70,800 adult missing-person reports were filed in 2025, more than twice the roughly 29,600 involving children.Legislative pushSouth Korea enacted the Act on the Protection and Support of Missing Children and Others in 2005, establishing the legal basis for many of the search tools used today. There is no equivalent comprehensive law for ordinary missing adults.Lawmakers have made repeated attempts to fill that gap.A bill proposed in 2024 by Rep. Lim Ho-seon of the Democratic Party of Korea would establish a separate information system for missing adults and give police clearer authority to obtain location and travel information.The proposal remains pending at the National Assembly alongside similar bills.Supporters argue that broader powers could help police act more quickly when an adult is in danger. Opponents warn that the same powers could be used to track people who have deliberately chosen to leave home or cut off contact.Adults generally have the right to decide where they live and whom they remain in contact with, making the issue more complicated than cases involving children or vulnerable people.Police can already obtain location information in some cases involving signs of imminent danger. The unresolved question is whether that authority should be expanded for missing adults more broadly.。    沧州有一家订单式工厂，为不同路况精准研发不同配方的沥青。8月20日，在黄骅市港城产业园区的伦特化工集团有限公司沥青材料研究院内，研究院主任崔世媛正带领科研人员，对一款黑色沥青样本进行配方优化实验。“这款沥青是我们历时3年时间，经过上百次配比试验研发出来的。”崔世媛说，通过精准配比，能让沥青分子内部构建起稳固的三维化学交联网络，相当于给沥青分子“搭起骨架”，从根本上解决性能不稳定的问题。相比传统材料，其高温抗车辙力提升50%、低温抗裂性提高20%、路面使用寿命延长30%。去年9月，这款自主研发的沥青一走出实验室，就被大规模应用在沧州市沧乐分线道路施工中。

B | 沧乐分线上通行的大型运输车占比超六成，长期的重载碾压让路面病害频发。

C | “使用这款沥青，不仅能解决重载路段夏天软塌顽疾，还能减少冬季路面裂缝。”崔世媛介绍。“作为传统沥青生产企业，要想实现持续发展，必须依靠创新突围。”该公司副总经理王新亮说，伦特化工集团每年将销售收入10%以上资金投入研发，紧跟国内公路建设及养护技术发展趋势，研究沥青新工艺、新材料。为推动科技创新和产业创新深度融合，他们联合交通运输部公路科学研究院、上海交通大学、同济大学等多家院校，成立沥青材料研究院，在沥青材料改性技术、高效生产工艺、智能化公路养护设备等方面发力，打通产学研用创新链条。目前，研究院已获得50余项国家专利。走进该公司展厅，如同进入一个“沥青超市”。多种沥青样本盛在玻璃瓶中，有的乌黑厚重，有的色彩亮丽；有的放在冰柜里，可耐受零下四十摄氏度低温；有的浸泡在水箱里，适配排水路面施工需求……该公司60多种沥青产品中，有不少是自主研发的高粘改性沥青、赛道专用沥青、温拌沥青等特种沥青。“针对高温重载、高寒冻土、专业赛事等不同路面需求，我们可以实现‘一路一配方’的定制化生产。

D | ”王新亮介绍。在生产车间，生产线有序运转，改性剂上料机器人在一旁供料。“上料机器人可将投料计量误差控制在0.3%以内。”王新亮说，以前，人工拆袋、搬运、投料，需要3至4名工人连续作业，现在，车间内仅需一名工作人员巡回值守。满产状态下，全年产能达90万吨。“我们将锚定基础设施领域一站式综合解决方案提供商的目标，不断研发具有自主知识产权的特种沥青产品，积极探索低碳、环保发展模式。”王新亮表示。

E | （乔宾娟）。

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Published on:01:17:47