A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Preparation method of phosphogypsum precast concrete
The invention relates to a preparation method of phosphogypsum precast concrete, which comprises the following steps: step 1, mixing acidic phosphogypsum with quicklime, then adding water and stirring, after uniformly stirring, covering the material for 20-28 hours, then drying at 50-60 DEG C, and sieving the dried material to leave fine particle powder phosphogypsum, namely pretreated phosphogypsum; step 2, preparing phosphogypsum precast concrete; 3, the mixture obtained in the step 2 is evenly stirred and poured into a mold, the mold is placed on a compaction table to be compacted after loading is completed, and a prefabricated concrete block is obtained; and 4, demolding the prefabricated concrete block, and curing the prefabricated concrete block under a standard curing condition to an age to obtain the phosphogypsum prefabricated concrete. The ardealite is used for preparing the precast concrete block product, and the ardealite is cured by the active mineral admixture and the cement, so that the purpose of increasing the consumption of the ardealite is achieved.
一种磷石膏预制混凝土的制备方法，包括下列步骤：步骤1：将酸性磷石膏与生石灰混合，然后加入水搅，拌均匀后进行闷料20‑28h，之后在50~60℃条件下烘干，烘干后的物料过筛留下细颗粒粉末磷石膏，即为预处理磷石膏；步骤2：磷石膏预制混凝土制备；步骤3：步骤2得到混合物搅拌均匀并倒入模具中，装料完毕后放置于振实台上振实，得到预制混凝土砌块；步骤4：预制混凝土砌块脱模，置于标准养护条件下养护至龄期，得到磷石膏预制混凝土。本发明将磷石膏用于制备预制混凝土砌块产品，用活性矿物掺和料和水泥共同固化磷石膏，以达到提高磷石膏消耗量的目的。
Preparation method of phosphogypsum precast concrete
The invention relates to a preparation method of phosphogypsum precast concrete, which comprises the following steps: step 1, mixing acidic phosphogypsum with quicklime, then adding water and stirring, after uniformly stirring, covering the material for 20-28 hours, then drying at 50-60 DEG C, and sieving the dried material to leave fine particle powder phosphogypsum, namely pretreated phosphogypsum; step 2, preparing phosphogypsum precast concrete; 3, the mixture obtained in the step 2 is evenly stirred and poured into a mold, the mold is placed on a compaction table to be compacted after loading is completed, and a prefabricated concrete block is obtained; and 4, demolding the prefabricated concrete block, and curing the prefabricated concrete block under a standard curing condition to an age to obtain the phosphogypsum prefabricated concrete. The ardealite is used for preparing the precast concrete block product, and the ardealite is cured by the active mineral admixture and the cement, so that the purpose of increasing the consumption of the ardealite is achieved.
一种磷石膏预制混凝土的制备方法，包括下列步骤：步骤1：将酸性磷石膏与生石灰混合，然后加入水搅，拌均匀后进行闷料20‑28h，之后在50~60℃条件下烘干，烘干后的物料过筛留下细颗粒粉末磷石膏，即为预处理磷石膏；步骤2：磷石膏预制混凝土制备；步骤3：步骤2得到混合物搅拌均匀并倒入模具中，装料完毕后放置于振实台上振实，得到预制混凝土砌块；步骤4：预制混凝土砌块脱模，置于标准养护条件下养护至龄期，得到磷石膏预制混凝土。本发明将磷石膏用于制备预制混凝土砌块产品，用活性矿物掺和料和水泥共同固化磷石膏，以达到提高磷石膏消耗量的目的。
Preparation method of phosphogypsum precast concrete
一种磷石膏预制混凝土的制备方法
DING YI (author) / WANG YANYAN (author) / REN QIFANG (author) / ZHU YUELEI (author) / SUN QIQI (author)
2022-12-02
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
Phosphogypsum foundation curing precast pile and preparation method thereof
| European Patent Office | 2024
Phosphogypsum-based concrete and preparation method thereof
| European Patent Office | 2024