A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
SELF-REINFORCED CEMENTITIOUS COMPOSITE COMPOSITIONS FOR BUILDING-SCALE THREE DIMENSIONAL (3D) PRINTING
Printable cementitious compositions for additive manufacturing are provided, that have a fresh state and a hardened state. In fresh state, the composition is flowable and extrudable in the additive manufacturing process. In the hardened state, the composition exhibits strain hardening. In one variation, the strain hardening is represented by a uniaxial tensile strength of >= about 2.5 MPa, a tensile strain capacity of >= about 1%, and a compressive strength at 100 hours of >= about 20 MPa. In other variations, the composition includes Portland cement, a calcium aluminate cement, a fine aggregate, water, a high range water reducing agent (HRWRA), and a polymeric fiber, as well as one or more optional components selected from: fly ash, silica flour, microsilica, attapulgite nanoclay, and/orhydroxypropylmethyl cellulose (HPMC). Methods of additive manufacturing with such compositions are also provided.
提供了用于增材制造的可打印胶凝组合物，其具有新鲜状态和硬化状态。在新鲜状态下，所述组合物在增材制造过程中是可流动且可挤出的。在硬化状态下，所述组合物表现出应变硬化。在一个变化形式中，所述应变硬化由≥约2.5MPa的单轴拉伸强度、≥约1％的拉伸应变能力和≥约20MPa的在100小时时的压缩强度表示。在另一些变化形式中，所述组合物包含波特兰水泥、铝酸钙水泥、细集料、水、高效减水剂(HRWRA)和聚合物纤维，以及选自以下的一种或更多种任选组分：飞灰、二氧化硅粉、氧化硅微粉、凹凸棒石纳米黏土和/或羟丙基甲基纤维素(HPMC)。还提供了用这样的组合物进行增材制造的方法。
SELF-REINFORCED CEMENTITIOUS COMPOSITE COMPOSITIONS FOR BUILDING-SCALE THREE DIMENSIONAL (3D) PRINTING
Printable cementitious compositions for additive manufacturing are provided, that have a fresh state and a hardened state. In fresh state, the composition is flowable and extrudable in the additive manufacturing process. In the hardened state, the composition exhibits strain hardening. In one variation, the strain hardening is represented by a uniaxial tensile strength of >= about 2.5 MPa, a tensile strain capacity of >= about 1%, and a compressive strength at 100 hours of >= about 20 MPa. In other variations, the composition includes Portland cement, a calcium aluminate cement, a fine aggregate, water, a high range water reducing agent (HRWRA), and a polymeric fiber, as well as one or more optional components selected from: fly ash, silica flour, microsilica, attapulgite nanoclay, and/orhydroxypropylmethyl cellulose (HPMC). Methods of additive manufacturing with such compositions are also provided.
提供了用于增材制造的可打印胶凝组合物，其具有新鲜状态和硬化状态。在新鲜状态下，所述组合物在增材制造过程中是可流动且可挤出的。在硬化状态下，所述组合物表现出应变硬化。在一个变化形式中，所述应变硬化由≥约2.5MPa的单轴拉伸强度、≥约1％的拉伸应变能力和≥约20MPa的在100小时时的压缩强度表示。在另一些变化形式中，所述组合物包含波特兰水泥、铝酸钙水泥、细集料、水、高效减水剂(HRWRA)和聚合物纤维，以及选自以下的一种或更多种任选组分：飞灰、二氧化硅粉、氧化硅微粉、凹凸棒石纳米黏土和/或羟丙基甲基纤维素(HPMC)。还提供了用这样的组合物进行增材制造的方法。
SELF-REINFORCED CEMENTITIOUS COMPOSITE COMPOSITIONS FOR BUILDING-SCALE THREE DIMENSIONAL (3D) PRINTING
用于建筑规模三维(3D)打印的自增强胶凝复合组合物
SOLTAN DANIEL G (author) / LI VICTOR C (author)
2020-07-17
Patent
Electronic Resource
Chinese
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