共查询到20条相似文献，搜索用时 109 毫秒
1.
沈国印 《南阳师范学院学报》2012,11(6):53-56
水泥混凝土结构外观是衡量混凝土内在质量优劣的一个重要方面,水泥混凝土结构外观质量控制决定了混凝土的外观、质量和使用寿命,耐久性是检验水泥混凝土结构外观质量控制的标准和手段.分析了混凝土结构外观与耐久性之间的关系、水泥混凝土结构外观存在的主要问题及原因,初步提出了解决混凝土结构外观质量与耐久性问题的思路及注意事项. 相似文献
2.
针对水泥混凝土构造物外观色泽的影响因素进行分析，提出对水泥混凝土的配合比、生产方式、质量控制等一些参考意见和看法。 相似文献
3.
4.
混凝土外观质量是混凝土的表观质量,应根据GB50204-2002<混凝土结构工程施工质量验收规范>规定作为一个重要分项进行验收,因而,混凝土外观质量是目前工程施工中必须严格控制. 相似文献
5.
本文介绍了混凝土工程常出现的外观缺陷和形成的原因,提出了施工中防治混凝土外观缺陷的质量控制措施,供大家参考. 相似文献
6.
本文总结了现浇钢筋混凝土箱梁混凝土外观质量通病的表现情况以及产生的原因,提出了提高箱梁混凝土外观质量的治理方法,并从施工温度控制、材料选用、支架搭设及模板精度控制的选用等方面探讨了箱梁外观质量预防与控制的具体措施。 相似文献
7.
8.
混凝土外观应具备表面平整、色泽均匀、边角分明等特点,工作中,要从支立和选择模板、涂脱模剂到混凝土拌和、运输、浇筑、捣实、养生等施工环节注意的控制要点,从而达到提高混凝土的外观质量. 相似文献
9.
混凝土的表面缺陷大致可以归纳为：①麻面：混凝土表面局部缺浆粗糙，或有许多小凹坑，但无钢筋外露；②露筋：钢筋混凝土结构内的主筋、副筋或箍筋等，没有被混凝土包裹而外露；③蜂窝：混凝土局部酥松，砂浆少，石子多，石子之间出现空隙，形成蜂窝状孔洞；④孔洞：混凝土结构内有空腔，局部没有混凝土或蜂窝持别大；⑤混凝土表面裂缝：混凝土表面的裂缝大都是因为收缩而产生的，不管是哪一种表面缺陷，都会对混凝土的外观质量带来不利的影响。 相似文献
10.
混凝土工程是土建工程中最为重要的组成部分.混凝土质量的好坏,直接关系到结构物的安全,同时也对结构物的造价有很大影响,混凝土工程的施工过程中,必须制定严谨科学的施工规范,提高混凝土整体质量,包括均匀性和完整性,避免由于混凝土生产过程产生的质量波动影响结构物的局部甚至整体外观缺陷.本文详细地阐述了土建施工时期,混凝土的制备、运输、浇筑以及养护的技术. 相似文献
11.
王珂 《福建师范大学学报(哲学社会科学版)》2007,(3):102-108
诗是最讲究形式技巧和文体范式的语言艺术,诗形不但是构成诗的文体范式的基础,还能够呈现诗人的诗艺水平.英语诗歌诗体的不稳定性使英语诗人有更多的文体自由,英语图像诗的历史悠久.现代图像诗运动正是自由诗革命的一部分,一些具像诗堪称极端的自由诗.图像诗既有增加美感的形式价值,也有使诗意增值的内容价值.图像诗创作具有特殊的文体革命意义,图像诗具有特殊的文本价值、文体价值及诗体价值. 相似文献
12.
13.
Dong-ming Yan Hua-wei Yin Cheng-lin Wu Yan-long Li Jason Baird Gen-da Chen 《浙江大学学报(A卷英文版)》2016,17(9):689-701
In this study, two full-size concrete walls were tested and analyzed to demonstrate the effectiveness of a chemically reactive enamel (CRE) coating in improving their mechanical behavior under blast loading: one with CRE-coated rebar and the other with uncoated rebar. Each wall was subjected in sequence to four explosive loads with equivalent 2, 4, 6-trinitrotoluene (TNT) charge weights of 1.82, 4.54, 13.6, and 20.4 kg. A finite element model of each wall under a close-in blast load was developed and validated with pressure and strain measurements, and used to predict rebar stresses and concrete surface strain distributions of the wall. The test results and visual inspections consistently indicated that, compared with the barrier wall with uncoated reinforcement, the wall with CRE-coated rebar has fewer concrete cracks on the front and back faces, more effective stress transfers from concrete to steel rebar, and stronger connections with its concrete base. The concrete surface strain distributions predicted by the model under various loading conditions are in good agreement with the crack patterns observed during the tests. 相似文献
14.
Kazutoshi Aso 《Community College Journal of Research & Practice》2013,37(5-6):355-360
In general, students in school learn mathematical concepts by words. Some mathematical concepts, however, are difficult to understand by words. This is especially true of some of the more complicated concepts in mathematics taught in higher education. For students who are studying to become engineers, it is very important to understand mathematics intuitively. Ways must be found for them to learn mathematics that will promote intuitive understanding. We often find that a figure helps us understand mathematical concepts and provides important clues for solving problems. A figure may serve as a concrete expression of an abstract mathematical concept; it is a visual image of the mathematical concept. A visual image is a figure with no words but its title. The aim of this article is to introduce some visual images that are effective in mathematical education. 相似文献
15.
马晓燕 《内蒙古师范大学学报(哲学社会科学版)》2005,34(6):35-40
从女性主义产生之日起,平等始终是西方女性主义的不懈追求,从对普遍化视野下同一性平等的寻求到更为具体化的权力平等,再到正义视阈内的差异平等,充分体现了女性主义发展的日趋现实化和理性化,而且直到今天,对平等合理性的寻求仍在继续着。 相似文献
16.
崔博 《南京师范大学文学院学报》2007,(4):126-130
通过对二月河、唐浩明等人创作的长篇历史小说研究的梳理,指出学界对历史小说研究中"大众"视角的缺乏。"大众"视角包含着具体的诗学意蕴、观念意蕴和接受图景,它不仅是研究视角的转移,也包含着研究者身份认同的调整和研究过程拓展的必然,这在历史小说研究中有重要地位。 相似文献
17.
This study examined the effect that systematically loading story presentations with criterion information has on the recall of abstract and concrete prose. Results indicated that aal plus picture presentations were most effective for the learning of both abstract and concrete content. Furthermore, the loading of additional detail into visual presentations resulted in greater recall than with simple pictures and also provided a greater supplementary effect to oral prose. 相似文献
18.
Raymond S. Dean 《Contemporary educational psychology》1984,9(4):384-393
The degree to which the concreteness of prose material presented in an auditory fashion would interact with learners' lateral preference under different right hemispheric presentation conditions was investigated with 96 normal adults. Forty-eight subjects with consistent right preference patterns and a like number of bilateral individuals were either instructed to image, given a visual-spatial interference task, or given no instructions before listening to passages which differed in abstractness. As predicted across conditions, learners recalled a significantly greater number of ideas when the passage was concrete. Importantly, the abstractness was found to interact with subjects' inferred cerebral dominance. Whereas instructions to image and visual interference had little significant effect on mixed dominant subjects, for more consistently lateralized subjects imagery instructions increased and right-hemispheric interference decreased concrete recall. The results were interpreted in terms of visual and verbal encoding concomitant with cerebral lateralization. 相似文献
19.
就视觉艺术图式的概念以及图式与风格的关系阐明了自己的观点 ,并通过图例 ,理性地分析了文艺复兴及其后欧洲一些传统画家的画面上具体的图式特征。 相似文献
20.
GONG Xiao-hua 《教育理论与实践》2008,(33)
不同的教育评价理论具有不同的教育评价目的观,生存论为重新理解教育评价目的提供新视阈,生存论视阈中的教育评价目的是促进具体个人主动发展,人与人、人与环境共同发展。 相似文献