CN101265063A - 一种活性粉末混凝土立式储罐锥形底板及其制作方法 - Google Patents
一种活性粉末混凝土立式储罐锥形底板及其制作方法 Download PDFInfo
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- CN101265063A CN101265063A CNA2008100842108A CN200810084210A CN101265063A CN 101265063 A CN101265063 A CN 101265063A CN A2008100842108 A CNA2008100842108 A CN A2008100842108A CN 200810084210 A CN200810084210 A CN 200810084210A CN 101265063 A CN101265063 A CN 101265063A
- Authority
- CN
- China
- Prior art keywords
- storage tank
- board
- active powder
- powder concrete
- tank
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 238000003860 storage Methods 0.000 title claims abstract description 26
- 239000004567 concrete Substances 0.000 title claims abstract description 16
- 239000000843 powder Substances 0.000 title claims abstract description 13
- 238000004519 manufacturing process Methods 0.000 title abstract description 3
- 238000010276 construction Methods 0.000 claims abstract description 7
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 6
- 239000010959 steel Substances 0.000 claims abstract description 6
- 238000005266 casting Methods 0.000 claims abstract description 4
- 239000002994 raw material Substances 0.000 claims abstract description 4
- 239000004568 cement Substances 0.000 claims description 15
- 239000000203 mixture Substances 0.000 claims description 6
- 239000010881 fly ash Substances 0.000 claims description 5
- 239000002956 ash Substances 0.000 claims description 3
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- XUIMIQQOPSSXEZ-UHFFFAOYSA-N silicon Chemical compound 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[Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 2
- 229910052710 silicon Inorganic materials 0.000 claims description 2
- 239000010703 silicon Substances 0.000 claims description 2
- 239000000835 fiber Substances 0.000 claims 1
- 239000003638 reducing agent Substances 0.000 claims 1
- 238000003466 welding Methods 0.000 abstract description 5
- 238000004140 cleaning Methods 0.000 abstract 2
- 238000002360 preparation method Methods 0.000 description 7
- 238000007906 compression Methods 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 238000000465 moulding Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000004062 sedimentation Methods 0.000 description 2
- 239000011230 binding agent Substances 0.000 description 1
- 239000010883 coal ash Substances 0.000 description 1
- 238000005260 corrosion Methods 0.000 description 1
- 238000007667 floating Methods 0.000 description 1
- 239000000446 fuel Substances 0.000 description 1
- 239000004574 high-performance concrete Substances 0.000 description 1
- 230000036571 hydration Effects 0.000 description 1
- 238000006703 hydration reaction Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002481 rotproofing Substances 0.000 description 1
- 230000003245 working Effects 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
- Y02W30/00—Technologies for solid waste management
- Y02W30/50—Reuse, recycling or recovery technologies
- Y02W30/91—Use of waste materials as fillers for mortars or concrete
Abstract
本发明提供一种活性粉末混凝土立式储罐锥形底板及其制作方法。主要解决现有的立式储罐底板钢板用量大、焊接工作量大、储罐清空难、放空难的问题。其特征在于：先将与罐壁(3)相连接的预埋件(4)与锥形基础(1)连接好，在施工现场采用活性粉末混凝土为原料进行锥形底板(2)的整体浇筑，罐底板(2)为倒圆锥形，坡度为i＝a/b＝0.03～0.05。该发明具有储罐罐底施工工艺简单、储罐易于清空、放空、储罐使用寿命长的特点。
Description
一种活性粉末混凝土立式储罐锥形底板及其制作方法 技术领域：本发明涉及一种油田地面工程立式储罐，属于一种活性粉末混凝 土立式储罐锥形底板及其制作方法。 背景技术：在油田地面工程中，储罐是液态物品储存必不可少的设备，其中 立式储罐为最常见的形式。目前采用的立式储罐底板材料全部是钢 板，并采用平板式结构焊接而成，钢板用量大，焊接工作量大，为防 止焊接变形而采取的措施费用高，并且对钢板要进行防腐处理。施工 工艺复杂，工人劳动强度大，同时由于底板是平板结构，所以储罐清 空难，放空难、腐蚀严重。 发明内容：为了克服现有的储罐底板钢板用量大、焊接工作量大的不足，本 发明提供一种活性粉末混凝土立式储罐锥形底板及其制作方法，该方 法具有工艺简单、节约成本的特点，采用该方法制成的立式储罐易于 清空、放空，耐腐蚀。本发明的技术方案是： 一种活性粉末混凝土立式储罐锥形底板及 其制作方法，先把与罐壁板相连接的预埋件与罐基础事先连接好，在 施工现场用活性粉末混凝土为原料进行罐底板的整体浇筑；罐底板为倒圆锥形，四周向中心的坡度为i=a/b=0.03〜0.05。本发明具有如下有益效果：由于采取上述方案，活性粉末混凝土(Reactive Powder Concrete, RPC)作为一类新型混凝土，不仅具 有100MPa〜800MPa的超高抗压强度，而且具有20MPa〜60MPa抗折强度，有效地克服了普通高性能混凝土的高脆性，在工程应用时，可 以有效地减少结构自重，节省工程的综合造价。活性粉末混凝土的抗 震性能较强，抗火性能较好，具有较好的匀质性、密实度和高耐久性， 还具有良好的耐磨性和低渗透性。本发明采用活性粉末混凝土现场浇 筑的倒锥形底板这一新型底板结构形式，解决了目前存在的储罐清空 难、放空难、腐蚀严重的问题；改善了底板的受力体系，将竖向正压3力进行分解，使得引起沉降变形的正压力降低。采用该方法不仅可以 简化储罐施工工艺，降低工人劳动强度，而且可以降低制作成本，延 长储罐的使用寿命，提高经济效益。同时对浮放罐的提离效应也有益 处，不易出现地震产生的象足破坏。 附图说明：附图1是本发明的结构示意图；图中l-罐基础，2-罐底板，3-罐壁板，4-预埋件，5-排污管。具体实施方式：下面结合附图对本发明作进一步说明：由图l所示， 一种活性粉末混凝土立式储罐锥形底板，包括底板2，底板2呈倒圆锥形，坡度i = a/b=0.03〜0.05，解决了目前存在 的储罐清空难、放空难、腐蚀严重的问题；也改善了底板的受力体系， 将竖向正压力进行分解，使得引起沉降变形的正压力降低；底板2 由活性粉末混凝土制成，活性混凝土的抗震性能较强，抗火性能较好， 具有较好的匀质性、密实度和高耐久性，还具有良好的耐磨性和低渗 透性。该活性粉末混凝土立式储罐底板的制作方法是：首先按常规施工 方法进行罐基础1的夯实，再将与罐壁板3相连接的预埋件4与罐基 础1连接好，然后对罐基础1进行普通混凝土浇筑施工，保证罐基础 l为倒圆锥形，待罐基础l成型后，焊接第一圈钢板罐底板，并向外 引出排污管5后，开始以活性粉末混凝土为原料进行罐底板2的整体 浇筑，罐底板2要连续浇筑成型。罐底板2为倒圆锥形，四周向中心 的坡度i = a/b=0. 03〜0. 05。上述的活性粉末混凝土的成分及所能达到的性能为:<table>table see original document page 4</column></row>
<table>随着水胶比的增大，活性粉末混凝土抗折强度和抗压强度逐渐降低，当水胶比为O. 16时，抗折强度和抗压强度最高；但当水胶比< 0. 16时，拌合物的流动性很差，振捣成型时不容易密实，导致其抗 压强度降低，所以在配制活性粉末混凝土时不应过分地追求水胶比， 而应综合考虑强度和流动性来选择最佳的水胶比，以达到较高的强 度，在这里，认为最佳水胶比为0. 18。同时，由于活性粉末混凝土实现高强度的前提是采用极低的水胶 比，但水胶比极低时水泥和硅灰都不能充分水化，因此采用粉煤灰取 代部分水泥，利用粉煤灰水化速度缓慢的特点，使拌合物在较低水胶 比时，水灰比却随粉煤灰掺量的增加而增大，从而营造一个良好的动 态水化环境。在配制活性粉末混凝土时掺入粉煤灰取代部分水泥用 量，不仅可以降低活性粉末混凝土的制备成本，还可以更好的改善活 性粉末混凝土的强度和工作性能，粉煤灰的最佳掺量是粉煤灰水泥比介于0.25——0.33之间，优先考虑采用0.3。
Claims (3)
1、一种活性粉末混凝土立式储罐锥形底板，包括底板(2)，其特征在于：底板(2)呈倒圆锥形，且由成分为水胶比为0.18-0.20、水泥1份、硅灰0.3份、粉煤灰0.25-0.33份、细砂1.18份、钢纤维3％、减水剂1％的活性粉末混凝土制成。
2、 根据权利要求1所述的活性粉末混凝土立式储罐锥形底板， 其特征在于：罐底板（2)的坡度为i=a/b=0.03〜0.05。
3、 根据权利要求1所述的活性粉末混凝土立式储罐锥形底板的 制作方法，包括将与罐壁板（3)相连接的预埋件（4)与锥形基础（1) 连接好，其特征在于：在施工现场采用活性粉末混凝土为原料进行锥 形底板（2)的整体浇筑。
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