CN113072337A - 一种掺杂纤维增强微孔混凝土制品及其生产方法 - Google Patents
一种掺杂纤维增强微孔混凝土制品及其生产方法 Download PDFInfo
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Abstract
本发明公开一种掺杂纤维增强微孔混凝土六面包覆保温芯材箱型结构制品及其生产方法,是由掺杂纤维增强微孔混凝凝土与高效保温芯材整体无间隙复合而成,形成六面包覆的框箱型小防火分仓结构,无机材料与六面包覆有机高效保温材料隔绝与空气、明火的接触,具有良好的防火性能;箱型结构限制了芯材热膨胀,防止不均匀变形导致开裂脱落,大大提高了制品的耐久性,并具有高强、轻质等优良特性。成墙后可真正实现“建筑保温与结构一体化”和保温层与主体结构“防火同等级,耐久同寿命”的技术要求。实现了高效保温与防火耐久性的统一。
Description
技术领域
本发明涉及一种掺杂纤维增强微孔混凝土制品及其生产方法,是将微孔混凝凝土流动性料浆注入由塑料定位件将高效保温芯材包覆、定位在成型模具内,硬化后呈掺杂纤维增强微孔混凝土六面包覆保温芯材箱型结构的制品,其具有小防火分仓的箱型结构,实现无机材料对有机材料的六面包覆,赋予制品良好的耐久性和防火性。
背景技术
我国建筑节能工程现阶段普遍采用粘贴聚苯板或岩棉板薄抹灰外墙保温技术体系,由于该体系自身存在技术缺陷,引发保温层开裂脱落及火灾频发等诸多问题。岩棉板等无机保温材料虽改善了防火问题,但粘结强度低,易分层脱落,导致粘贴岩棉板薄抹灰外墙保温体系耐久性和安全性问题十分严峻。因此建设工程领域提出通过建筑节能与结构一体化技术实现高效保温前提下的“耐久同寿命”、“防火同等级”的技术路线。
发明内容
基于上述,本发明涉及一种掺杂纤维增强微孔混凝土六面包覆保温芯材制品,其通过塑料定位件及模具成型,实现无机材料六面包覆有机高效保温材料的箱型结构体,彻底隔绝了有机保温材料与空气和明火的接触,实现了制品小防火分仓结构,进一步提高了防火性能,达到建筑物外墙保温系统与主体结构防火同等级的要求;同时六面包覆保温芯材的整体复合框箱型结构形式提高了对芯材热膨胀的限制,防止不均匀变形导致的制品墙面开裂,确保制品的体积稳定性,使制品耐久性实现了与建筑主体结构同寿命的技术要求。
本发明的目的在于提供一种掺杂纤维增强微孔混凝土制品,另一目的在于提供一种掺杂纤维增强微孔混凝土六面包覆保温芯材箱型结构制品的生产方法。通过本发明的实施将极大地提高围护保温一体化产品的耐久性和防火性。
本发明的目的是采取以下措施来实现:
一种掺杂纤维增强微孔混凝土制品,为六面包覆保温芯材箱型结构,它是由掺杂纤维增强微孔混凝土与高效保温芯材一次性整体复合而成;所述掺杂纤维增强微孔混凝土是以铝硅基低收缩快硬水泥为胶凝材料,轻集料为骨料,不同弹性模量的多种纤维掺杂为增强材料,所述的多种纤维掺杂含包括玻璃纤维、聚丙烯纤维、玄武岩纤维等,并将多种纤维掺杂水化在水泥石基体内,再引入孔径小于0.25mm的独立封闭的微小气泡而制成的均匀流动性料浆,并通过塑料定位件将高效保温芯材定位在成型模具内,浇筑掺杂纤维增强微孔混凝土流动性料浆硬化后形成由掺杂纤维增强微孔混凝土六面包覆高效保温芯材箱型结构的制品。
所述掺杂纤维增强微孔混凝凝土中重量配比为:铝硅基低收缩快硬水泥280-560kg/m³;普通硅酸水泥70-140 kg/m³;矿物掺合料150-220 kg/m³;膨胀珍珠岩20kg/m³;发泡稳泡剂3-5kg/m³;玻璃纤维、聚丙烯纤维、玄武岩纤维、多种掺杂纤维2-5 kg/m³;水灰比0. 50-0.65;料浆容重900-1200 kg/m³;塌落度180-220mm。
所述预先将所需尺寸规格的保温芯材表面插上塑料定位件;生产时将插好塑料定位件的保温芯材嵌入成型模具内并固定在定位钢筋倒刺上;所述定位钢筋倒刺焊在成型模具底模上,以防止浇筑时保温芯材上浮;然后浇筑掺杂纤维增强微孔混凝土直到成型模具顶部,硬化后形成掺杂纤维增强微孔混凝土六面包覆保温芯材的箱型结构制品。
本发明的优点和产生的有益效果是:
1、掺杂纤维增强微孔混凝土是以铝硅基低收缩快硬水泥为胶凝材料,轻集料为骨料,多种纤维掺杂为增强材料,并在水泥石基体内引入孔径小于0.25mm的独立封闭的气泡而制成均匀料浆;具有抗冲击抗开裂好、收缩小、防火性好、强度高及质量轻等特点,可赋予制品优良的性能。
2、一种掺杂纤维增强微孔混凝土六面包覆保温芯材箱型结构制品性能指标:制品气干密度:≤650 kg/m³;掺杂纤维增强微孔混凝土基体干密度≤1200 kg/m³,导热系数:≤0.14W/(m▪k),抗压强度:≥5.0Mpa,干燥收缩值(标准法):≤0.50mm/m;制品耐火极限:≥2.5h;六面包覆挤塑板芯材制品当量导热系数:≤0.035W/(m▪k)。
3、本发明通过塑料定位件控制浇筑通道,使用大流动度自密实掺杂纤维增强微孔混凝土浇筑,实现无机材料六面完全包覆有机高效保温材料的箱型结构体,是箱型小防火分仓结构复合制品。复合制品隔绝了与空气明火的接触,极大限度地发挥出了无机材料的防火性能和有机材料的高效保温性能,赋予了制品高效保温和防火性能。
4、形成六面包覆整体复合框箱型结构形式,提高了对芯材热膨胀的限制,防止不均匀变形导致的制品墙面开裂,确保制品的体积稳定性,使耐久性实现了与建筑主体结构同寿命的技术要求。框箱型结构形式是实现小防火分仓和对芯材热膨胀的限制、防止不均匀变形导致开裂脱落、确保制品耐久性的关键型材。
附图说明
图1是本发明平面构造示意图。
图2是本发明掺杂纤维增强微孔混凝土六面包覆保温芯材箱型结构制品的立体示意图。
具体实施方式
如图1-图2所示,一种掺杂纤维增强微孔混凝土制品1是由表面插有塑料定位件4六面包覆保温芯材箱型结构,通过浇筑掺杂纤维增强微孔混凝土2料浆在成型模具5中整体无间隙复合而成的。
在浇筑掺杂纤维增强微孔混凝土2料浆之前,需在成型模具5底板及边板刷脱模剂以便更好的脱模;将表面插好塑料定位件4的保温芯材3嵌入成型模具5内,并使保温芯材3插在成型模具5底板上的定位钢筋倒刺6上,以防止保温芯材3在浇筑时上浮;按照配比制备掺杂纤维增强微孔混凝土2料浆:将备好的铝硅基低收缩胶凝材料,轻集料,不同弹性模量的多种掺杂纤维加水拌,再引入孔径小于0.25mm的独立封闭的微小气泡,搅拌均匀后制成的掺杂纤维增强微孔混凝土2均匀流动性料浆,并从成型模具5顶上部浇筑到模具中,使料浆在各方向填满模具空腔并振捣密实,待初凝后表面收光,养护至脱模强度后,脱模得到内部保温芯材六面包覆有掺杂纤维增强微孔混凝土的箱型结构制品。
Claims (4)
1.一种掺杂纤维增强微孔混凝土制品(1)为六面包覆保温芯材箱型结构,其特征是:它是由掺杂纤维增强微孔混凝土(2)与高效保温芯材(3)一次性整体复合而成;所述掺杂纤维增强微孔混凝土(2)是以铝硅基低收缩快硬水泥为胶凝材料,轻集料为骨料,不同弹性模量的多种纤维掺杂为增强材料,并在水化形成的水泥石基体内,引入孔径小于0.25mm的独立封闭的微小气泡而制成的均匀流动性料浆;其特征是通过塑料定位件(4)将高效保温芯材(3)六面定位在成型模具(5)内,浇筑掺杂纤维增强微孔混凝土(2)流动性料浆硬化后形成由掺杂纤维增强微孔混凝凝土(2)六面包覆高效保温芯材(3)箱型结构的制品。
2.根据权要求1所述的一种掺杂纤维增强微孔混凝土制品(1),其特征是:所述的不同弹性模量的多种纤维掺杂为玻璃纤维、聚丙烯纤维、玄武岩纤维。
3.根据权要求1所述的一种掺杂纤维增强微孔混凝土制品(1),其特征是掺杂纤维增强微孔混凝土(2)重量配比为:铝硅基低收缩快硬水泥280-560kg/m³;普通硅酸水泥70-140kg/m³;矿物掺合料150-220 kg/m³;膨胀珍珠岩20kg/m³;发泡稳泡剂3-5kg/m³;玻璃纤维、聚丙烯纤维、玄武岩纤维等多种掺杂纤维2-5 kg/m³;水灰比0. 50-0.65;料浆容重900-1200 kg/m³;塌落度180-220mm。
4.实施权要求1所述的一种掺杂纤维增强微孔混凝土制品的生产方法,其特征在于:预先将所需尺寸规格的保温芯材(3)表面插上塑料定位件(4);生产时将插好塑料定位件(4)的保温芯材(3)嵌入成型模具(5)内并固定在定位钢筋倒刺(6)上;所述定位钢筋倒刺(6)焊在成型模具(5)底模上,以防止浇筑时保温芯材(3)上浮;然后浇筑掺杂纤维增强微孔混凝土(2)直到成型模具(5)顶部,硬化后形成掺杂纤维增强微孔混凝土(2)六面包覆保温芯材(3)的箱型结构制品。
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