Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Refractory concrete and preparation method thereof
The invention relates to the field of concrete, and particularly discloses refractory concrete and a preparation method thereof. The refractory concrete comprises the following raw materials in partsby weight: 300-420 parts of refractory coarse aggregate, 180-260 parts of refractory fine aggregate, 100-120 parts of a cementing material, 5-20 parts of an admixture, 0.1-0.5 part of a water reducingagent and 30-50 parts of water, wherein the cementing material is composed of low-calcium aluminate cement and a water molecule curing cementing agent, and the weight ratio of the low-calcium aluminate cement to the water molecule curing cementing agent is 1:(0.1-0.3). The preparation method comprises the following steps: S1, mixing refractory coarse aggregate, refractory fine aggregate, a cementing material, an admixture and a water reducing agent, adding water, and stirring; S2, adjusting the pH value to 5-7 in the stirring process; and S3, after stirring is completed, preparing the refractory concrete. The refractory concrete can be used for manufacturing a lining of a tempering furnace, and has the advantages of slowing down the dehydration rate of the refractory concrete and prolonging the service life of the refractory concrete.
本发明涉及混凝土的领域，具体公开了一种耐火混凝土及其制备方法。一种耐火混凝土，包含以下重量份的原料:耐火粗骨料：300～420份,耐火细骨料：180～260份,胶凝材料：100～120份,掺合料：5～20份,减水剂：0.1～0.5份,水：30～50份,所述胶凝材料由低钙铝酸盐水泥和水分子固化胶结剂组成，所述低钙铝酸盐水泥和水分子固化胶结剂重量比=1：（0.1～0.3）；其制备方法为：S1、将耐火粗骨料、耐火细骨料、胶凝材料、掺合料、减水剂混合后，加入水搅拌；S2、搅拌过程中调整pH为5～7；S3、搅拌完成后，制得耐火混凝土。本发明的耐火混凝土可用于制造回火炉内衬，其具有减缓耐火混凝土脱水速率，延长耐火混凝土使用寿命的优点。
Refractory concrete and preparation method thereof
The invention relates to the field of concrete, and particularly discloses refractory concrete and a preparation method thereof. The refractory concrete comprises the following raw materials in partsby weight: 300-420 parts of refractory coarse aggregate, 180-260 parts of refractory fine aggregate, 100-120 parts of a cementing material, 5-20 parts of an admixture, 0.1-0.5 part of a water reducingagent and 30-50 parts of water, wherein the cementing material is composed of low-calcium aluminate cement and a water molecule curing cementing agent, and the weight ratio of the low-calcium aluminate cement to the water molecule curing cementing agent is 1:(0.1-0.3). The preparation method comprises the following steps: S1, mixing refractory coarse aggregate, refractory fine aggregate, a cementing material, an admixture and a water reducing agent, adding water, and stirring; S2, adjusting the pH value to 5-7 in the stirring process; and S3, after stirring is completed, preparing the refractory concrete. The refractory concrete can be used for manufacturing a lining of a tempering furnace, and has the advantages of slowing down the dehydration rate of the refractory concrete and prolonging the service life of the refractory concrete.
本发明涉及混凝土的领域，具体公开了一种耐火混凝土及其制备方法。一种耐火混凝土，包含以下重量份的原料:耐火粗骨料：300～420份,耐火细骨料：180～260份,胶凝材料：100～120份,掺合料：5～20份,减水剂：0.1～0.5份,水：30～50份,所述胶凝材料由低钙铝酸盐水泥和水分子固化胶结剂组成，所述低钙铝酸盐水泥和水分子固化胶结剂重量比=1：（0.1～0.3）；其制备方法为：S1、将耐火粗骨料、耐火细骨料、胶凝材料、掺合料、减水剂混合后，加入水搅拌；S2、搅拌过程中调整pH为5～7；S3、搅拌完成后，制得耐火混凝土。本发明的耐火混凝土可用于制造回火炉内衬，其具有减缓耐火混凝土脱水速率，延长耐火混凝土使用寿命的优点。
Refractory concrete and preparation method thereof
一种耐火混凝土及其制备方法
YUE XIAOWEI (Autor:in) / ZHANG YUJUN (Autor:in) / YE QIANGQIANG (Autor:in)
19.02.2021
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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