水泥混凝土路面施工技术要求

上传人:夏** 文档编号:470503409 上传时间:2023-11-26 格式:DOC 页数:8 大小:238KB
返回 下载 相关 举报
水泥混凝土路面施工技术要求_第1页
第1页 / 共8页
水泥混凝土路面施工技术要求_第2页
第2页 / 共8页
水泥混凝土路面施工技术要求_第3页
第3页 / 共8页
水泥混凝土路面施工技术要求_第4页
第4页 / 共8页
水泥混凝土路面施工技术要求_第5页
第5页 / 共8页
点击查看更多>>
资源描述

《水泥混凝土路面施工技术要求》由会员分享,可在线阅读,更多相关《水泥混凝土路面施工技术要求(8页珍藏版)》请在金锄头文库上搜索。

1、yuan, an increase of 17.5%; local government general budget revenue of 500 million Yuan, . Painting, model culture creates new Ma Church community, creating Lake scenic spot culture education base, received high evaluation from provincial and municipal discipline Inspection Commission, the peoples d

2、aily special report. Constantly promote independent Commission against corruption culture construction to rural extends, created established Dahlin rural industry Park independent Commission against corruption culture positions, formed has a support service low double excellent of members lead team,

3、 constantly perfect and established Park funds assets management, and village audit supervision, and villagers democratic financial, system, strengthening Park party, and Chief, and financial, full public, powerful to guarantees has new rural construction, by city rural style clean government inspec

4、tion unit led of height evaluation. Through the implementation of honest and clean government cultural construction, and effectively educate the broad masses of party members and cadres and consciously regulated behavior and discipline, honesty in politics and culture to create a good atmosphere and

5、 fresh development environment. Although we in implement implementation independent Commission against corruption guidelines aspects made has must effectiveness, but away from superior of requirements also exists must of distance, main performance for: a is system enough sound, education, and superv

6、ision, and prevention, and punishment, aspects long-term mechanism also enough perfect, especially in enrollment bid work regulatory aspects also needed strengthening; II is regulatory supervision exists lost of Yu wide, and lost of Yu soft, investigation illegal disciplinary case of efforts also ne

7、eded strengthening, individual sector and cadres also different degree exists treat gift, not to benefits not do, and mess do of phenomenon; Three for honest work is the new situations and new problems in finding timely enough, treatment measures are not strong enough. To solve these problems, we wi

8、ll proceed from the following five aspects of rectification, make sure to implement the provisions of the code. (A) deepening the learning, enhance the consciousness of honesty in politics. To create event as an opportunity to Excel and learning party, further increasing the governance capability an

9、d advanced construction, reinforced rules of the broad masses of party members and cadres awareness, sense of responsibility, sense of honor, improve working ability and level of scientific development. Should make full use of meetings, in particular central group learning opportunity, further stren

10、gthening the study and education of the code, the intensive warning education, education the majority of party members and cadres known fear, knew fear, honesty in politics of tension the strings, consciousness and enhancing the implementation of the initiative. Also, pay attention to apply what the

11、y have learned, consciously study results into planning work, new ideas, 附件:水泥混凝土路面施工技术要求1设计依据(1)公路工程技术标准(JTGB012003)(2)公路水泥混凝土路面设计规范(JTGD402002)(3)公路水泥混凝土路面施工技术规范(JTGF302003)(4)公路路面基层施工技术规范(JTJ034-2000)(5)公路路基设计规范(JTGD302004)(6)公路路基施工技术规范(JTJ033-95)(7)公路工程质量检验评定标准(JTJF80/1-2004)2工程设计2.1技术指标一、二级公路水泥

12、混凝土路面结构从上至下依次为:水泥混凝土面板厚26cm,基层为20cm厚5%水泥稳定碎石,底基层为30cm厚12%石灰稳定土,采用特重交通等级设计。水泥混凝土的强度以28d龄期的弯拉强度控制,要求混凝土弯拉强度标准值不得低于5.0MPa,抗冻标号不小于F200。三、四级公路水泥混凝土路面结构从上至下依次为:水泥混凝土面板厚20cm,基层为30cm厚12%石灰稳定土,采用中等交通等级设计。水泥混凝土的强度以28d龄期的弯拉强度控制,要求混凝土弯拉强度标准值不得低于4.5MPa,抗冻标号不小于F200。路基填筑维持原设计要求不变。2.2路面接缝设计2.2.1纵向接缝路面宽度大于6m的混凝土面板,在

13、公路中心线处设一道纵向施工缝,采用平缝形式。其余部位纵缝均为缩缝,采用假缝形式,缩缝位置与行车道分幅一致,但不得大于4.5m。路面宽度等于6m的混凝土面板,在公路中心线处设一道纵向缩缝,采用假缝形式。路面宽度小于等于4.5m的混凝土面板,不设纵缝。纵缝均与公路中心线平行。纵向接缝无论是施工缝还是缩缝,均在缝内设置拉杆。如原路设有纵缝,纵缝的设置应与原路一致。2.2.2横向接缝横向接缝为46m等间距布置,分块面积不得大于25m2。横缝采用设传力杆的假缝形式。每日施工结束或因临时原因中断施工时,必须设置横向施工缝,其位置应尽可能选在缩缝处。设在缩缝的施工缝,采用设传力杆的平缝形式。遇有困难需设在缩

14、缝之间时,施工缝采用设拉杆的企口缝形式。2.2.3胀缝设计与原路相接处和与桥头搭板处应设置胀缝,由于无法设置传力杆,在端部5.0m范围内设置双向钢筋网。其余胀缝间距应根据施工期间的温度情况设置,高温期施工,可不设胀缝,常温期施工,可按照500m左右间距设置一道。3路面施工3.1水泥混凝土面层施工3.1.1材料的基本要求(1)水泥水泥应采用旋窑道路硅酸盐水泥,也可以采用旋窑硅酸盐水泥或普通硅酸盐水泥。各龄期的抗折强度、抗压强度、化学成分和物理指标应符合规范公路水泥混凝土路面施工技术规范(JTGF302003)中表3.1.1和表3.1.2的规定。采用机械化铺筑时,宜选用散装水泥,散装水泥的出厂温度

15、应符合(JTGF302003)第3.1.4小节的规定。(2)粗集料粗集料可使用碎石、破碎卵石和卵石。粗集料应质地坚硬、耐久、洁净。粗集料技术指标应符合(JTGF302003)表3.3.1的规定。本工程混凝土路面使用的粗集料级别应不低于级,级集料吸水率不应大于2.0%。粗集料级配范围应符合(JTGF302003)表3.3.2的规定。路面混凝土粗集料不得使用不分级的统料,应按公称最大粒径的不同采用24个粒级的集料进行掺配,并应符合(JTGF302003)表3.3.2合成连续级配的要求。卵石公称最大粒径不宜大于19.0;碎卵石公称最大粒径不宜大于26.5;碎石公称最大粒径不应大于31.5。碎卵石或碎石粒径小于75m的石粉含量不宜大于1%。当怀疑有碱活性集料或夹杂有碱活性集料时,应进行碱集料反应检验,确认无碱集料反应后,方可使用。当粗集料中含有活性二氧化硅或其它活性成分时,水泥中碱的含量不应大于0.6%,并应按照公路工程集料试验规程(JTJ058-2000)的规定进行试验,确认对混凝土质量无有害影响方可施工。(3)细集料细集料可采用质地坚硬、耐久、洁净的天然砂(河砂和沉积砂)、机制砂或混合砂,其技术指标应符合(JTGF302003)表3.4.1的规定,级别不应低于表中级技术指标。细集料级配应符合(JTGF302003)表3.4.2。砂按细度模数分为粗砂、中砂、细砂。路面用天然砂宜为中砂

展开阅读全文
相关资源
正为您匹配相似的精品文档
相关搜索

最新文档


当前位置:首页 > 资格认证/考试 > 自考

电脑版 |金锄头文库版权所有
经营许可证:蜀ICP备13022795号 | 川公网安备 51140202000112号