{"currentpage":1,"firstResult":0,"maxresult":10,"pagecode":5,"pageindex":{"endPagecode":5,"startPagecode":1},"records":[{"abstractinfo":"本文研究了偏高岭土对硬化水泥石热膨胀性能的影响规律,利用热重-差示扫描量热同步分析(TG-DSC)和扫描电镜(SEM)观察等测试方法分析其影响机理,并采用甲醇吸附法测定水泥石孔隙率.实验结果表明:水泥石的线性应变和线膨胀系数随着偏高岭土掺量的增大而减小,当偏高岭士掺量达到20%时,水泥石热应变及热膨胀系数分别降低23.8%和28.2%;偏高岭土的掺入可降低水泥石中Ca(OH)<,2>的含量,并且使水泥石微观结构得到改善.","authors":[{"authorName":"<span style=\"color:red\">徐</span><span style=\"color:red\">洪</span><span style=\"color:red\">国</span>","id":"a7967361-cab8-4d68-9e3f-f5d87b662726","originalAuthorName":"徐洪国"},{"authorName":"水中和","id":"0ec7daa0-2078-4180-afc1-a97a12b5b1b5","originalAuthorName":"水中和"},{"authorName":"章瑞","id":"a996830e-1b86-4dd3-b429-0277e2972962","originalAuthorName":"章瑞"},{"authorName":"陈伟","id":"c9ce0a1a-5d82-4361-bb1f-f26b0a9c3d36","originalAuthorName":"陈伟"},{"authorName":"曾俊杰","id":"97b94815-6da3-405e-842a-6b038af99641","originalAuthorName":"曾俊杰"}],"doi":"","fpage":"278","id":"319963b9-9b3c-4708-96c7-939e9d4f09e5","issue":"2","journal":{"abbrevTitle":"GSYTB","coverImgSrc":"journal/img/cover/GSYTB.jpg","id":"36","issnPpub":"1001-1625","publisherId":"GSYTB","title":"硅酸盐通报   "},"keywords":[{"id":"57b430b0-19fd-4651-8c01-9b272b44f9bf","keyword":"偏高岭土","originalKeyword":"偏高岭土"},{"id":"30741892-e3cc-487b-a83e-c6502e15b6ff","keyword":"硬化水泥石","originalKeyword":"硬化水泥石"},{"id":"dfd8151d-51a1-4a23-bb3b-4cdda21dc83f","keyword":"热膨胀系数","originalKeyword":"热膨胀系数"},{"id":"d70ef7d0-5e82-4c8c-a152-3eee0bee9117","keyword":"显微结构","originalKeyword":"显微结构"},{"id":"dac913f0-c1e1-41a2-b023-a52ec3e68af6","keyword":"孔隙率","originalKeyword":"孔隙率"}],"language":"zh","publisherId":"gsytb201102006","title":"偏高岭土对水泥石热膨胀性能的影响","volume":"30","year":"2011"},{"abstractinfo":"单轴、双轴和三轴<span style=\"color:red\">徐</span>变试验结果表明,混凝土的<span style=\"color:red\">徐</span>变与弹性变形一样具有空间特性,但根据单轴<span style=\"color:red\">徐</span>变试验得到的<span style=\"color:red\">徐</span>变系数、<span style=\"color:red\">徐</span>变泊松比以及采用叠加原理计算的双轴、三轴应力状态下的空间<span style=\"color:red\">徐</span>变与实际情况存在较大偏差.为了准确计算不同应力状态下混凝土的空间<span style=\"color:red\">徐</span>变,介绍了应力组合对有效<span style=\"color:red\">徐</span>变泊松比的影响和基于有效<span style=\"color:red\">徐</span>变泊松比的空间<span style=\"color:red\">徐</span>变计算方法.另外,根据应力张量的弹性力学意义,引入了球应力<span style=\"color:red\">徐</span>变系数(ψ)m和偏应力<span style=\"color:red\">徐</span>变系数(ψ) d,提出了基于这两个<span style=\"color:red\">徐</span>变系数的空间<span style=\"color:red\">徐</span>变计算统一表达式,可计算混凝土在单轴、双轴和三轴等不同应力状态下的空间<span style=\"color:red\">徐</span>变.","authors":[{"authorName":"黄胜前","id":"f60fe1e8-6699-466b-8f2e-355e391d0c51","originalAuthorName":"黄胜前"},{"authorName":"杨永清","id":"0ad9d4be-4c12-4497-a380-8dee2c8f7ad4","originalAuthorName":"杨永清"},{"authorName":"李晓斌","id":"a5e2e801-c9b9-4f4b-886e-c62ae3c23491","originalAuthorName":"李晓斌"},{"authorName":"陈志伟","id":"db16b3f8-4c53-49d7-bdd3-f6cf5f2247c1","originalAuthorName":"陈志伟"}],"doi":"","fpage":"150","id":"77593762-6ffb-4cfa-913f-f64ffef2186c","issue":"2","journal":{"abbrevTitle":"CLDB","coverImgSrc":"journal/img/cover/CLDB.jpg","id":"8","issnPpub":"1005-023X","publisherId":"CLDB","title":"材料导报"},"keywords":[{"id":"69ea1570-d4c9-437e-bfef-97ae77a244a5","keyword":"混凝土","originalKeyword":"混凝土"},{"id":"9785e9c9-1fc1-4ea3-ab52-a37f97e3f32e","keyword":"单轴","originalKeyword":"单轴"},{"id":"4565bb1b-db4a-4cd3-8595-f4cc47900c42","keyword":"双轴","originalKeyword":"双轴"},{"id":"59877901-b9f9-4bd2-a23d-bca130502b51","keyword":"三轴","originalKeyword":"三轴"},{"id":"375cdb53-1ae1-4106-b024-cece1bb5b8eb","keyword":"应力状态","originalKeyword":"应力状态"},{"id":"2edbc816-e655-4662-9602-f0529134d608","keyword":"空间<span style=\"color:red\">徐</span>变","originalKeyword":"空间徐变"}],"language":"zh","publisherId":"cldb201302040","title":"不同应力状态下混凝土空间<span style=\"color:red\">徐</span>变的统一表达式","volume":"27","year":"2013"},{"abstractinfo":"为了研究不同配合比设计方法对再生混凝土长期<span style=\"color:red\">徐</span>变性能的影响,分别采用等体积砂浆法(EMV法)与传统替代法配制再生混凝土,测试各组再生混凝土试件28 d龄期后自然条件下持荷的变形值和相同试验条件下试件的收缩值,并计算各组试件的<span style=\"color:red\">徐</span>变度.研究结果表明:两种方法配制的再生混凝土的收缩<span style=\"color:red\">徐</span>变变化规律与对比普通混凝土相似.EMV法可有效改善再生混凝土的<span style=\"color:red\">徐</span>变性能,具有较低的<span style=\"color:red\">徐</span>变度.","authors":[{"authorName":"霍俊芳","id":"55188923-049c-49aa-994c-ac564398860f","originalAuthorName":"霍俊芳"},{"authorName":"李晨霞","id":"8fa10b03-f76b-44b4-97ee-bd67d36d407e","originalAuthorName":"李晨霞"},{"authorName":"侯永利","id":"83d612b7-ba2c-46d3-a2ff-d86f396b5f77","originalAuthorName":"侯永利"},{"authorName":"吕笑岩","id":"98dd9616-8bca-4990-9631-ef1c189dce52","originalAuthorName":"吕笑岩"}],"doi":"","fpage":"723","id":"dc2db04e-0a0c-4741-830f-d84f7a4e5aee","issue":"2","journal":{"abbrevTitle":"GSYTB","coverImgSrc":"journal/img/cover/GSYTB.jpg","id":"36","issnPpub":"1001-1625","publisherId":"GSYTB","title":"硅酸盐通报   "},"keywords":[{"id":"d2a7136a-24da-4dc5-b2c8-c753ce344b72","keyword":"再生混凝土","originalKeyword":"再生混凝土"},{"id":"46b36702-7dae-4dad-b1c2-1996ae105250","keyword":"配合比","originalKeyword":"配合比"},{"id":"69440820-bb2f-4272-abe2-bdc4edbd2d6e","keyword":"<span style=\"color:red\">徐</span>变","originalKeyword":"徐变"}],"language":"zh","publisherId":"gsytb201702054","title":"再生粗骨料混凝土收缩<span style=\"color:red\">徐</span>变性能试验","volume":"36","year":"2017"},{"abstractinfo":"对江西<span style=\"color:red\">洪</span>州窑从东汉晚期至晚唐五代8期400个瓷胎样品进行了中子活化分析, 分析结果显示碱金属元素Na和Rb、碱土金属元素Ba及Fe等作为胎的助熔剂元素随年代的变化趋势相似, 都呈现出两头高中间低的U字形变化规律, 其中Fe作为呈色元素, 其含量的高低与瓷胎颜色的深浅是一致的.分析结果还揭示<span style=\"color:red\">洪</span>州窑的发展与衰落以及窑址的不断变迁可能都与制瓷原料的发现与消耗有关.对分析数据进行主成分分析, 可以将不同时期烧制的瓷胎样品大致分为5组: (1)东汉晚期东吴时期; (2)两晋和南朝时期; (3)隋代; (4)初唐和盛唐时期; (5)晚唐五代时期.","authors":[{"authorName":"冯向前","id":"bb73e52d-559b-4aa0-9509-23f003727157","originalAuthorName":"冯向前"},{"authorName":"冯松林","id":"13c25759-1db8-425f-b21e-84ae056cff1f","originalAuthorName":"冯松林"},{"authorName":"张文江","id":"8d96cc12-6a67-4944-817b-215bb3dec0c3","originalAuthorName":"张文江"},{"authorName":"樊昌生","id":"e5d11a72-233a-41c4-a38d-1904e5cfad2a","originalAuthorName":"樊昌生"},{"authorName":"权奎山","id":"1f96e504-74c9-4ce8-88b5-559409c26f07","originalAuthorName":"权奎山"}],"doi":"10.3969/j.issn.1007-4627.2005.01.043","fpage":"142","id":"70359f2b-8369-4007-987f-7444de816237","issue":"1","journal":{"abbrevTitle":"YZHWLPL","coverImgSrc":"journal/img/cover/YZHWLPL.jpg","id":"78","issnPpub":"1007-4627","publisherId":"YZHWLPL","title":"原子核物理评论   "},"keywords":[{"id":"5d15414d-1511-4f0b-9870-b7212e945429","keyword":"核分析技术","originalKeyword":"核分析技术"},{"id":"b1f77f43-f953-4410-ad65-387980a986c6","keyword":"<span style=\"color:red\">洪</span>州窑古瓷","originalKeyword":"洪州窑古瓷"},{"id":"3118b21f-e76c-44d6-895c-ff785bb4462d","keyword":"元素特征","originalKeyword":"元素特征"}],"language":"zh","publisherId":"yzhwlpl200501043","title":"历代<span style=\"color:red\">洪</span>州窑古瓷的元素组成特征的中子活化分析研究","volume":"22","year":"2005"},{"abstractinfo":"本文阐述了FRP应力松弛、<span style=\"color:red\">徐</span>变性能的研究意义,总结了国内外关于应力松弛、<span style=\"color:red\">徐</span>变性能的最新研究成果及主要影响因素,并探讨了应力松弛和<span style=\"color:red\">徐</span>变的计算模型,对未来FRP长期性能研究的发展方向做出了展望.","authors":[{"authorName":"李建辉","id":"0f7148fe-f8bb-4e01-9827-43b6d6088f0a","originalAuthorName":"李建辉"},{"authorName":"邓宗才","id":"734ba4b3-500c-4ca4-adda-8e3a09ca07b3","originalAuthorName":"邓宗才"}],"doi":"10.3969/j.issn.1003-0999.2007.03.016","fpage":"56","id":"59ffbb46-47b1-40d6-8ec4-254b9f0174de","issue":"3","journal":{"abbrevTitle":"BLGFHCL","coverImgSrc":"journal/img/cover/BLGFHCL.jpg","id":"6","issnPpub":"1003-0999","publisherId":"BLGFHCL","title":"玻璃钢/复合材料"},"keywords":[{"id":"3192da00-b6fe-4a92-a3fe-eec5f9cca17e","keyword":"FRP","originalKeyword":"FRP"},{"id":"812f44d9-8adc-47b7-95e7-d14c2fe8670d","keyword":"应力松弛","originalKeyword":"应力松弛"},{"id":"37e0f5f2-7caa-403e-96f9-d45fa60555ee","keyword":"<span style=\"color:red\">徐</span>变","originalKeyword":"徐变"},{"id":"290bc541-6726-480e-a116-34147a7cb2ae","keyword":"前景展望","originalKeyword":"前景展望"}],"language":"zh","publisherId":"blgfhcl200703016","title":"FRP应力松弛及<span style=\"color:red\">徐</span>变性能的研究近展","volume":"","year":"2007"},{"abstractinfo":"采用自制的<span style=\"color:red\">徐</span>变加载装置,研究了聚乙烯醇(PVA)纤维、双掺粉煤灰和矿渣以及减缩剂对7d等强度混凝土<span style=\"color:red\">徐</span>变性能的影响规律,结合与混凝土同水胶比浆体的化合结合水量分析了其影响机理.结果表明,混凝土<span style=\"color:red\">徐</span>变系数发展较快,加载100d左右趋于稳定;减缩剂和双掺矿物掺合料均明显降低了混凝土的<span style=\"color:red\">徐</span>变系数,以掺减缩剂效果更好,450d值仅为0.63,而PVA纤维增加了<span style=\"color:red\">徐</span>变系数;混凝土的<span style=\"color:red\">徐</span>变系数随浆体化学结合水量的增加而降低,60d早龄期浆体水化有利于降低<span style=\"color:red\">徐</span>变系数,450d后期水化产物对降低混凝土的<span style=\"color:red\">徐</span>变系数贡献不大.","authors":[{"authorName":"何智海","id":"d284a902-9f8e-4b08-94b4-bb64a0ab69a8","originalAuthorName":"何智海"},{"authorName":"钱春香","id":"0ffbbe0c-1b53-4782-aa33-1b1c9ed2432d","originalAuthorName":"钱春香"},{"authorName":"钱桂枫","id":"dd861e3b-72df-4e42-acc8-72f6bb385518","originalAuthorName":"钱桂枫"},{"authorName":"孟凡利","id":"28a07ab2-0d08-4d67-b8cb-ea65ad3f7ef0","originalAuthorName":"孟凡利"},{"authorName":"程飞","id":"8f433d59-aca3-4626-a346-16e01790b998","originalAuthorName":"程飞"},{"authorName":"高祥彪","id":"6c683991-a878-456e-ae60-df7fce0e0d8b","originalAuthorName":"高祥彪"},{"authorName":"庄园","id":"e0d49cad-3f8c-4544-8501-e47b67079e01","originalAuthorName":"庄园"}],"doi":"","fpage":"925","id":"012cf742-03f0-418f-88af-49ca86d1e1fb","issue":"5","journal":{"abbrevTitle":"GNCL","coverImgSrc":"journal/img/cover/GNCL.jpg","id":"33","issnPpub":"1001-9731","publisherId":"GNCL","title":"功能材料"},"keywords":[{"id":"7473f418-c202-45ab-81d0-4cf29e9e7c03","keyword":"混凝土","originalKeyword":"混凝土"},{"id":"48514fe2-20e4-4695-aa58-fea087a0e070","keyword":"<span style=\"color:red\">徐</span>变系数","originalKeyword":"徐变系数"},{"id":"67a4ff0b-a8af-44ec-bfc8-714b1c72b529","keyword":"化学结合水","originalKeyword":"化学结合水"},{"id":"76f5dbf7-811b-463b-8ed6-5e1d515f895b","keyword":"减缩剂","originalKeyword":"减缩剂"},{"id":"5ea7a23a-4846-468e-a494-01c352107864","keyword":"等强度","originalKeyword":"等强度"}],"language":"zh","publisherId":"gncl201105040","title":"等强度下混凝土组分对<span style=\"color:red\">徐</span>变性能的影响","volume":"42","year":"2011"},{"abstractinfo":"采用自制的<span style=\"color:red\">徐</span>变加载装置,研究了萘系减水剂、聚羧酸减水剂以缓凝组分、减缩组分对等配合比混凝土<span style=\"color:red\">徐</span>变的影响规律,结合与混凝土同水灰比浆体非可蒸发水含量及混凝土内部相对湿度演化分析了其影响机理.结果表明,相比萘系减水剂,聚羧酸减水剂能显著降低混凝土的<span style=\"color:red\">徐</span>变,其中以早强型聚羧酸减水剂的效果最好；减缩剂对混凝土的<span style=\"color:red\">徐</span>变有降低作用,缓凝组分的掺入对<span style=\"color:red\">徐</span>变有不利影响；聚羧酸减水剂和减缩组分能通过降低混凝土内部水分传输和向外界扩散来降低<span style=\"color:red\">徐</span>变；早强型聚羧酸使浆体具有较多的水化产物数量,对强度的增加和<span style=\"color:red\">徐</span>变的降低有一定好处,缓凝组分的掺入会延缓水化并减少总水化产物数量,降低强度,使<span style=\"color:red\">徐</span>变增加.","authors":[{"authorName":"张异","id":"ec340278-6d5c-4d88-99cd-92ecbf14c3de","originalAuthorName":"张异"},{"authorName":"钱春香","id":"6283fdf1-1e86-4f95-9386-4d0f621336ae","originalAuthorName":"钱春香"},{"authorName":"赵飞","id":"c2e62026-2cba-44d3-98ea-9c4bea97ae2a","originalAuthorName":"赵飞"},{"authorName":"何智海","id":"e248a81c-0309-4f52-948c-33abefbfdb85","originalAuthorName":"何智海"},{"authorName":"曲军","id":"8ffd3667-7c95-4a2c-8af6-473aba7b8aff","originalAuthorName":"曲军"},{"authorName":"郭景强","id":"bb3a41ea-646e-4070-aa43-4fa748725358","originalAuthorName":"郭景强"},{"authorName":"","id":"3c1baf9a-ef00-41d3-b730-79569cbe2b9d","originalAuthorName":""}],"doi":"10.3969/j.issn.1001-9731.2013.11.023","fpage":"1620","id":"d3cbe933-f50e-4134-ab17-c124ad18db38","issue":"11","journal":{"abbrevTitle":"GNCL","coverImgSrc":"journal/img/cover/GNCL.jpg","id":"33","issnPpub":"1001-9731","publisherId":"GNCL","title":"功能材料"},"keywords":[{"id":"66f7978b-6b62-4021-bd9e-469d3dde0824","keyword":"混凝土","originalKeyword":"混凝土"},{"id":"8efa8ed0-5daf-4d86-9e26-abc4fd830f4e","keyword":"<span style=\"color:red\">徐</span>变度","originalKeyword":"徐变度"},{"id":"5996e33b-b097-423e-8fbf-add299a3954b","keyword":"减水剂","originalKeyword":"减水剂"},{"id":"3c88bb35-44c2-4bbe-8948-58e858e7e724","keyword":"非可蒸发水","originalKeyword":"非可蒸发水"},{"id":"4ea69246-a041-47fb-b0a5-bf55e9a04887","keyword":"内部相对湿度","originalKeyword":"内部相对湿度"}],"language":"zh","publisherId":"gncl201311023","title":"化学外加剂对混凝土<span style=\"color:red\">徐</span>变的影响规律研究","volume":"44","year":"2013"},{"abstractinfo":"通过试验研究了两种水胶比分别为0.33和0.29的自密实轻骨料混凝土(SCLC)的收缩和<span style=\"color:red\">徐</span>变性能,并与配合比相似的普通骨料自密实混凝土(SCC)及强度接近的普通混凝土(NC)进行了对比.收缩试验从入模后12小时开始,至6个月结束.<span style=\"color:red\">徐</span>变试验从3天龄期开始加载,分别在7、14、21和28天继续加载,而后保持荷载不变,加载应力水平分别为相应龄期抗压强度的40％,持续12个月.试验结果表明:SCLC前10天龄期有轻微膨胀现象,收缩变形始终小于SCC和NC,至6个月时三者有接近趋势;360天龄期SCLC<span style=\"color:red\">徐</span>变系数低于NC和SCC,而<span style=\"color:red\">徐</span>变度则高于NC,与SCC相当;随着抗压强度的提高,SCLC的<span style=\"color:red\">徐</span>变系数和<span style=\"color:red\">徐</span>变度均有减小趋势.","authors":[{"authorName":"张云<span style=\"color:red\">国</span>","id":"16e79cf1-667b-4b63-a680-75192c67cc80","originalAuthorName":"张云国"},{"authorName":"吴熙","id":"c8c8bf57-2238-443e-b3f5-68faf6c95c1b","originalAuthorName":"吴熙"},{"authorName":"毕巧巍","id":"53a4a4dd-eb63-489e-b93b-8843a640a8f5","originalAuthorName":"毕巧巍"}],"doi":"","fpage":"35","id":"f5a97de4-eadc-4787-a106-96421737e788","issue":"1","journal":{"abbrevTitle":"CLKXYGCXB","coverImgSrc":"journal/img/cover/CLKXYGCXB.jpg","id":"13","issnPpub":"1673-2812","publisherId":"CLKXYGCXB","title":"材料科学与工程学报"},"keywords":[{"id":"7fcb2640-af48-423a-90f7-db4c26ea5cbf","keyword":"自密实轻骨料混凝土","originalKeyword":"自密实轻骨料混凝土"},{"id":"6fdf6cba-8402-435d-b3d3-27f13262dac3","keyword":"工作性能","originalKeyword":"工作性能"},{"id":"c59a40e0-7825-4deb-bf9b-3546aa6dcfc0","keyword":"收缩","originalKeyword":"收缩"},{"id":"18387f5c-7d51-4bb5-ac2c-1d89f8063394","keyword":"<span style=\"color:red\">徐</span>变","originalKeyword":"徐变"}],"language":"zh","publisherId":"clkxygc201401008","title":"自密实轻骨料混凝土的收缩与<span style=\"color:red\">徐</span>变性能","volume":"32","year":"2014"},{"abstractinfo":"通过合成的聚乙二醇马来酸半酯大单体(PMAn)取代部分烯丙基聚氧乙烯醚(XPEG)进行共聚反应,得到了<span style=\"color:red\">徐</span>放型聚羧酸系高性能减水剂.合成影响因素的研究结果表明,当PMAn分子量为750且PMAn取代XPEG的比例为20%时,减水剂的减水率和保坍能力最好.红外光谱分析结果表明,合成的减水剂未聚合的单体残留很少;采用合成的减水剂配制的混凝土具有突出的坍落度保持能力.","authors":[{"authorName":"麻秀星","id":"2b1630b6-d319-4bea-8e15-d7b14f669137","originalAuthorName":"麻秀星"},{"authorName":"钱觉时","id":"e8cd7b77-3bc8-43e8-a358-c40b1836b58a","originalAuthorName":"钱觉时"},{"authorName":"郭鑫祺","id":"29c3285a-b67e-4648-81f1-4ce5b29a5d4f","originalAuthorName":"郭鑫祺"},{"authorName":"方云辉","id":"b3fb147b-9142-48ec-8b35-2efe35c7fe44","originalAuthorName":"方云辉"},{"authorName":"蒋卓君","id":"8350f143-50e8-42d8-8fd5-c794e9a081a4","originalAuthorName":"蒋卓君"},{"authorName":"温庆如","id":"56bb2277-2ba2-41cd-b865-2f12c0e7d6d0","originalAuthorName":"温庆如"},{"authorName":"李苑","id":"414c4a65-66a1-4c50-b381-33a5c8cff238","originalAuthorName":"李苑"},{"authorName":"王智","id":"a9634129-6004-4324-a820-652e4049aab9","originalAuthorName":"王智"}],"doi":"","fpage":"55","id":"e3511b06-89e5-4ae6-84cb-d564b88b6375","issue":"20","journal":{"abbrevTitle":"CLDB","coverImgSrc":"journal/img/cover/CLDB.jpg","id":"8","issnPpub":"1005-023X","publisherId":"CLDB","title":"材料导报"},"keywords":[{"id":"9361657c-b80e-4db4-ad8a-f51b1bc5ad99","keyword":"聚羧酸减水剂","originalKeyword":"聚羧酸减水剂"},{"id":"d31a1bc4-11a2-4d9e-b371-4fc9ea815a75","keyword":"<span style=\"color:red\">徐</span>放","originalKeyword":"徐放"},{"id":"208edaa2-19e0-40b8-b18a-ce19de5d5b8c","keyword":"合成","originalKeyword":"合成"},{"id":"5fd5115c-f08f-434c-9a61-f9b1ee79d42c","keyword":"聚乙二醇马来酸半酯","originalKeyword":"聚乙二醇马来酸半酯"}],"language":"zh","publisherId":"cldb201020017","title":"<span style=\"color:red\">徐</span>放型聚羧酸系减水剂的合成研究","volume":"24","year":"2010"},{"abstractinfo":"选取比较常用的纤维掺量,以普通聚丙烯纤维和钢纤维作参照,研究了聚丙烯粗纤维对混凝土加载1 a后抗压<span style=\"color:red\">徐</span>变性能的影响,并分析了其机理,结果表明:尽管普通聚丙烯纤维和聚丙烯粗纤维材质相同,但由于其体积掺量相对较小,对混凝土受力后的变形行为作用不大,可以忽略其对混凝土<span style=\"color:red\">徐</span>变性能的影响;钢纤维的外形尺寸、体积掺量以及在混凝土内的分布均与聚丙烯粗纤维相似,但可以凭借其较高的弹性模量抑制混凝土的抗压<span style=\"color:red\">徐</span>变;而低弹性模量的聚丙烯粗纤维对混凝土弹性模量及内部缺陷影响较大,明显削弱了混凝土抵抗<span style=\"color:red\">徐</span>变的能力,聚丙烯粗纤维混凝土1 a<span style=\"color:red\">徐</span>变度较基准混凝土增大了17.0％.","authors":[{"authorName":"于俊超","id":"1e4a3c54-375f-42b3-a9b2-185f9e5949a9","originalAuthorName":"于俊超"},{"authorName":"赵庆新","id":"0f305245-7c3b-4167-9fa5-1aaac9721659","originalAuthorName":"赵庆新"},{"authorName":"李迎华","id":"3ace3639-f4d4-4048-a20c-e6013ff1d05a","originalAuthorName":"李迎华"},{"authorName":"魏会林","id":"987b7bf2-c542-46cd-8c8d-4aa8a4eb6f7b","originalAuthorName":"魏会林"},{"authorName":"李扬","id":"c6c65057-2266-4f5b-9120-d2248f2e73a1","originalAuthorName":"李扬"}],"doi":"","fpage":"1723","id":"e6bb4725-e7bf-4a3e-87c3-3ecc39188ea2","issue":"9","journal":{"abbrevTitle":"GSYTB","coverImgSrc":"journal/img/cover/GSYTB.jpg","id":"36","issnPpub":"1001-1625","publisherId":"GSYTB","title":"硅酸盐通报   "},"keywords":[{"id":"239eefff-e6c8-4f5f-a269-5e7e272886f1","keyword":"聚丙烯粗纤维","originalKeyword":"聚丙烯粗纤维"},{"id":"8d377685-83a0-4951-b854-4eda7ef886ea","keyword":"钢纤维","originalKeyword":"钢纤维"},{"id":"a434b882-b81d-444a-825b-614d2cee45e8","keyword":"混凝土","originalKeyword":"混凝土"},{"id":"9c130672-e70b-496d-9e8c-f1f52ae0f1ca","keyword":"<span style=\"color:red\">徐</span>变","originalKeyword":"徐变"}],"language":"zh","publisherId":"gsytb201309006","title":"聚丙烯粗纤维对混凝土<span style=\"color:red\">徐</span>变性能的影响","volume":"32","year":"2013"}],"totalpage":256,"totalrecord":2557}