Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Concrete admixture, concrete product and preparation method thereof
The invention discloses a concrete admixture, a concrete product and a preparation method of the concrete admixture, and the preparation method of the concrete admixture comprises the following steps: adding water into engineering residue soil for slurry mixing to obtain slurry with the baume degree of 1.8-2.5, wherein the main component of the engineering residue soil contains kaolin; purifying the slurry so as to remove quartz particles, plant fibers, hematite and pyrolusite in the slurry; and drying, calcining and powdering the purified slurry to obtain the concrete admixture, wherein the calcining condition is as follows: the dry particles of the slurry are calcined for 100-200 minutes at the temperature of 600-800 DEG C, and then are rapidly cooled to normal temperature at the speed of more than or equal to 7 DEG C/s. The invention also provides a prepared concrete admixture and a concrete product. When the prepared concrete admixture is added into concrete, the breaking strength and compressive strength of the concrete can be remarkably improved, and a solid waste recycling solution is provided for engineering muck treatment.
一种混凝土掺和料、混凝土制品及其制备方法，该混凝土掺和料的制备方法，包括：将工程渣土加水调浆得到波美度为1.8～2.5的泥浆，所述工程渣土的主成分含高岭土；对所述泥浆进行纯化，以去除所述泥浆中的石英颗粒、植物纤维、赤铁矿和软锰矿；将纯化后的泥浆进行干燥、煅烧及粉化，即制得所述混凝土掺和料；其中，所述煅烧的条件为：使所述泥浆的干燥颗粒在600℃～800℃下煅烧100min～200min，然后以≥7℃/s的速率快速冷却至常温。本发明还提供了制成的混凝土掺和料及混凝土制品。本发明制得的混凝土掺和料添加到混凝土中可显著提高混凝土的抗折强度和抗压强度，为工程渣土处理提供了一种固体废弃物资源化解决方案。
Concrete admixture, concrete product and preparation method thereof
The invention discloses a concrete admixture, a concrete product and a preparation method of the concrete admixture, and the preparation method of the concrete admixture comprises the following steps: adding water into engineering residue soil for slurry mixing to obtain slurry with the baume degree of 1.8-2.5, wherein the main component of the engineering residue soil contains kaolin; purifying the slurry so as to remove quartz particles, plant fibers, hematite and pyrolusite in the slurry; and drying, calcining and powdering the purified slurry to obtain the concrete admixture, wherein the calcining condition is as follows: the dry particles of the slurry are calcined for 100-200 minutes at the temperature of 600-800 DEG C, and then are rapidly cooled to normal temperature at the speed of more than or equal to 7 DEG C/s. The invention also provides a prepared concrete admixture and a concrete product. When the prepared concrete admixture is added into concrete, the breaking strength and compressive strength of the concrete can be remarkably improved, and a solid waste recycling solution is provided for engineering muck treatment.
一种混凝土掺和料、混凝土制品及其制备方法，该混凝土掺和料的制备方法，包括：将工程渣土加水调浆得到波美度为1.8～2.5的泥浆，所述工程渣土的主成分含高岭土；对所述泥浆进行纯化，以去除所述泥浆中的石英颗粒、植物纤维、赤铁矿和软锰矿；将纯化后的泥浆进行干燥、煅烧及粉化，即制得所述混凝土掺和料；其中，所述煅烧的条件为：使所述泥浆的干燥颗粒在600℃～800℃下煅烧100min～200min，然后以≥7℃/s的速率快速冷却至常温。本发明还提供了制成的混凝土掺和料及混凝土制品。本发明制得的混凝土掺和料添加到混凝土中可显著提高混凝土的抗折强度和抗压强度，为工程渣土处理提供了一种固体废弃物资源化解决方案。
Concrete admixture, concrete product and preparation method thereof
混凝土掺和料、混凝土制品及其制备方法
DONG PENGFEI (Autor:in) / LI HUAJUN (Autor:in)
07.05.2021
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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