CN1232387C - 封闭的增强纤维封包及由这种封闭封壳构成的链状包装 - Google Patents

封闭的增强纤维封包及由这种封闭封壳构成的链状包装 Download PDF

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CN1232387C
CN1232387C CNB028092813A CN02809281A CN1232387C CN 1232387 C CN1232387 C CN 1232387C CN B028092813 A CNB028092813 A CN B028092813A CN 02809281 A CN02809281 A CN 02809281A CN 1232387 C CN1232387 C CN 1232387C
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罗尼·德温特
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    • E04C5/073—Discrete reinforcing elements, e.g. fibres
    • E04C5/076—Specially adapted packagings therefor, e.g. for dosing
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
    • B01F35/71—Feed mechanisms
    • B01F35/713—Feed mechanisms comprising breaking packages or parts thereof, e.g. piercing or opening sealing elements between compartments or cartridges
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
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    • B01F35/7132—Feed mechanisms comprising breaking packages or parts thereof, e.g. piercing or opening sealing elements between compartments or cartridges the package containing one of the components dissolves when in contact with the other component of the mixture
    • B—PERFORMING OPERATIONS; TRANSPORTING
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    • E04C—STRUCTURAL ELEMENTS; BUILDING MATERIALS
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Abstract

本发明涉及一种封闭增强纤维封包(2)，其由可在纤维混凝土中分解的材料构成，从而使增强纤维(3)以疏散的方式存在于该封包(2)中，增强纤维(3)以大致相互平行的方式布置在该封包中；本发明还涉及一种由多个这种封闭封包(2)构成的链状包装。

Description

封闭的增强纤维封包及由这种封闭封包构成的链状包装
技术领域
本发明涉及一种封闭的增强纤维封包，其由可分解在纤维混凝土中的材料构成，从而使增强纤维以疏散的方式存在于该封包中。
背景技术
人们已从DE4214540A和WO95/11861中了解了这种封闭的增强纤维封包。
在混凝土混合搅拌过程中加入疏散的增强纤维以便形成纤维混凝土的缺点是该过程通常会使增强纤维不均匀分布或散布在所形成的纤维混凝土中。
本发明就是为了克服上述缺陷而提出的。
发明描述
因此，本发明提供一种在本文开头所提到的封闭的增强纤维封包，增强纤维以大致相互平行的方式放置在该封包中。
本发明封闭的增强纤维封包的优选实施例的特征在于：增强纤维的长度基本上与封包的长度相一致，且纤维沿封包的长度方向布置，或者增强纤维的长度基本上与封包的宽度相一致且纤维沿封包的宽度方向布置。
这样发现，当疏散的增强纤维以基本上相互平行的方式或以本发明的封闭封包的形式供给混凝土混合搅拌机时，在纤维混凝土的混合搅拌过程中，增强纤维的分布或散布状况得到了改善。
必须注意的是，将这种增强纤维以基本上相互平行的方式进行包装是公知的。例如BE1003656A(8901350)中就有相应的描述。在此情况下，相互平行的增强纤维的端部涂覆有特殊的胶并通过特殊的胶粘结在一起。
这在WO96/02715中进行了描述。在此情况下，平行的增强纤维由特殊的包装材料包围，而平行增强纤维的端部不包覆或不包围有包装材料。
本发明封包的重要区别是本发明封包是封闭的封包。其重要的优点是在运输或类似过程中增强纤维不会从该封闭封包中散失。因此，这种封闭封包可用于构成本发明的链状包装。
在本发明封包的另一个优选实施例中，增强纤维在封闭封包中的填充度至少为75％。
在本发明封包的又一个优选实施例中，增强纤维是钢纤维。
通过纤维混凝土，我们可以认识到在所有的可固化材料中加入增强纤维例如钢纤维、玻璃纤维和合成纤维例如聚丙烯纤维，可以提高可固化材料的性能。
本发明还涉及一种由本发明的多个封闭封包构成的链状包装。
在本发明链状包装的优选实施例中，封包相互连接在一起。
在本发明链状包装的另一个优选实施例中，封包相互成一直线地连接在一起。
本发明链状包装的重要优点是可通过非常简单的方式将精确量的增强纤维供应给混合槽或混凝土混合搅拌机。
供应精确量的增强纤维例如钢纤维是一件非常困难的事情。无疑，在建筑现场进行混合搅拌时尤为如此。
人们已提出了多种解决办法，例如EP522029A(WO91/14551)、EP499572A、EP499573A、DE29714704U、DE3412216A、DE4427156A、FR2672045A以及许多其它的专利文件。
这些解决办法的缺点是它们都需要一个非常复杂的计量机或称重机。
另一个缺点是在混凝土混合搅拌厂或建筑现场对增强纤维进行计量或称重既烦琐又费时。
由于使用了本发明的这种链状包装，因此就可通过非常简单的方式将精确量的增强纤维供应到混合槽或混凝土混合搅拌机中。在制造增强纤维的过程中，以封闭的封包例如袋的方式来供应准确而清楚量的增强纤维。这就可通过输送带、滚动装置或类似的供应装置将精确量的增强纤维供应给混合槽，其中，以测量连续的链状包装的长度或计算供应给混合槽的封包的数目来代替前述的计量或称重。
下面将结合附图对本发明进行进一步的描述。
附图描述
图1和2是本发明的封闭的纤维封包和部分链状包装的透视示意图。
具体实施方式
在图1中，本发明的链状包装总地由标号1表示。链状包装由大量的相互连接在一起的袋2构成。袋2由可在砂浆或混凝土中分解的材料制成。袋或包2是完全封闭的。
如上所述，众所周知，可将储存在袋例如可在水中分解的纤维素中的配料混合在混凝土中。最好，将纤维素基的箔片用于制造袋2，并外加对混凝土无害的水溶性胶和填充剂；这种箔片还可能用作造纸原料，例如在造纸工业中。袋可用水溶性的热粘结剂粘结在一起并进行封闭。但显然可使用可在通常的混合时间范围内分解在混凝土水中的每一种箔片。
在图1中，填充在袋2中的增强纤维用标号3表示。增强纤维3可由各种各样的材料制成。这取决于对纤维的要求和所要增强的纤维混凝土。最好，采用钢增强纤维3，尤其是本申请人N.V.Bekaert S.A.所销售的商标名为DRAMIX的钢增强纤维。钢纤维3所具有的拉伸力为500-3000N/mm2。
所用的纤维可以是直的。这是可进行增强的最简单和最便宜的增强纤维。最好，增强纤维3所具有的形状使其很难通过拉伸变形而将其从凝固的混凝土材料中拔出。为此，纤维沿其长度制成波纹状或使其横截面发生变化。对于钢纤维，其厚度或直径最好是0.15-1.2mm。出于实际使用和经济的原因，钢纤维的长度与直径的比大多数是10-200，且最小为40。对于非直线的纤维，长度是纤维端部之间的直线距离，因此，直径沿长度变化的纤维的直径被定义为整个长度范围内的平均直径。
如图1所示，增强纤维3最好基本上相互平行地设置在袋2中。在钢纤维的情况下，每个袋2的总的纤维重量是100g-2kg。无疑使用重量超过2kg的袋也是可能的。
如上所述，可在实际生产钢纤维的地方或在实际生产钢纤维之外的另一个地方对钢纤维进行包装和称量。例如，可通过磁力将钢纤维3放置在大致相互平行的位置上。
最好，钢纤维3的长度实际上等于袋2的长度，且钢纤维3沿袋2的长度方向布置。链状包装1最好由连接成一条直线的袋2构成。实际上，还可使钢纤维3的长度与袋2的宽度相等且使纤维3沿袋2的宽度方向布置。
最好，包或袋2基本上完全填充增强纤维3，从而在运输袋2的过程中使纤维3保持相互平行。增强纤维3在袋2中的填充度应当至少是75％，以便在运输袋2的过程中使纤维3保持相互平行。填充度是增强纤维3的体积与袋或包2的容积之比或比值。
显然，本发明的链状包装1可通过简单的运输设备例如输送带方便地将这种连续的包装1输送到混合槽，并以简单的方式通过计数器计算出袋2的数目或通过简单的测量装置测量出所提供的链状包装的长度以便于确定供给混合槽的增强纤维3的重量。
图2示出了链状包装1，包或袋2通过其一个侧面连接到带或条带4上。条带4可由丝线、线缆或类似装置来代替。条带4由可在待增强的混凝土中分解的材料制成。

Claims (7)

1.一种封闭的增强纤维封包(2)，其由可在纤维混凝土中分解的材料构成，增强纤维(3)以疏散的方式存在于该封包(2)中，其特征在于：增强纤维(3)以大致相互平行的方式布置在该封包(2)中。
2.根据权利要求1所述的封包，其特征在于：增强纤维(3)的长度基本上与封包(2)的长度相一致，且纤维沿封包的长度方向布置。
3.根据权利要求1所述的封包，其特征在于：增强纤维(3)的长度基本上与封包(2)的宽度相一致，且纤维沿封包(2)的宽度方向布置。
4.根据权利要求2或3所述的封包，其特征在于：增强纤维(3)的填充度至少为75％。
5.根据权利要求1所述的封包，其特征在于：增强纤维(3)由钢制成。
6.一种由多个如权利要求1-5中的一个或多个所述封闭封包构成的链状包装。
7.根据权利要求6所述的链状包装，其特征在于：封包(2)相互连接在一起。
CNB028092813A 2001-05-04 2002-03-05 封闭的增强纤维封包及由这种封闭封壳构成的链状包装 Expired - Fee Related CN1232387C (zh)

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