A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Phosphogypsum aggregate pervious concrete and preparation method thereof
The invention belongs to the technical field of concrete, and particularly relates to phosphogypsum aggregate pervious concrete and a preparation method thereof.The preparation method comprises the steps that premixed powder is put into a roller granulator, water is added in a spraying mode in the operation process, alpha-semi-hydrated gypsum scattering powder is added in a scattering mode, then formed particles are screened, and the phosphogypsum aggregate pervious concrete is obtained; after the aggregate is naturally hardened, performing surface waterproof treatment; and adding the obtained ardealite aggregate, cement, an additive and water into a drum mixer, stirring for 90 seconds, discharging, and molding to prepare the ardealite aggregate pervious concrete. After the phosphogypsum aggregate pervious concrete is cured for 28 days, the compressive strength of the phosphogypsum aggregate pervious concrete is measured to be 15.7 Mpa or above, and the porosity of the phosphogypsum aggregate pervious concrete can reach 10-18%.
本发明属于混凝土技术领域，尤其涉及一种磷石膏骨料透水混凝土及其制备方法，包括将预混粉放入滚筒造粒机中，运行过程中采用喷洒的方式加入水，同时采用扬撒的方式加入α半水石膏扬撒粉，然后对成型的颗粒进行筛分处理，制得骨料，待骨料自然硬化后，进行表面防水处理；将得到的磷石膏骨料、水泥、添加剂和水加入滚筒搅拌机，搅拌90s出料并成型制备出磷石膏骨料透水混凝土。本发明的磷石膏骨料透水混凝土在养护28d后测其抗压强度15.7Mpa以上，孔隙率可达10‑18％。
Phosphogypsum aggregate pervious concrete and preparation method thereof
The invention belongs to the technical field of concrete, and particularly relates to phosphogypsum aggregate pervious concrete and a preparation method thereof.The preparation method comprises the steps that premixed powder is put into a roller granulator, water is added in a spraying mode in the operation process, alpha-semi-hydrated gypsum scattering powder is added in a scattering mode, then formed particles are screened, and the phosphogypsum aggregate pervious concrete is obtained; after the aggregate is naturally hardened, performing surface waterproof treatment; and adding the obtained ardealite aggregate, cement, an additive and water into a drum mixer, stirring for 90 seconds, discharging, and molding to prepare the ardealite aggregate pervious concrete. After the phosphogypsum aggregate pervious concrete is cured for 28 days, the compressive strength of the phosphogypsum aggregate pervious concrete is measured to be 15.7 Mpa or above, and the porosity of the phosphogypsum aggregate pervious concrete can reach 10-18%.
本发明属于混凝土技术领域，尤其涉及一种磷石膏骨料透水混凝土及其制备方法，包括将预混粉放入滚筒造粒机中，运行过程中采用喷洒的方式加入水，同时采用扬撒的方式加入α半水石膏扬撒粉，然后对成型的颗粒进行筛分处理，制得骨料，待骨料自然硬化后，进行表面防水处理；将得到的磷石膏骨料、水泥、添加剂和水加入滚筒搅拌机，搅拌90s出料并成型制备出磷石膏骨料透水混凝土。本发明的磷石膏骨料透水混凝土在养护28d后测其抗压强度15.7Mpa以上，孔隙率可达10‑18％。
Phosphogypsum aggregate pervious concrete and preparation method thereof
一种磷石膏骨料透水混凝土及其制备方法
ZHANG LI (author) / ZHANG YANGANG (author) / ZHANG LIN (author) / LIU ZHONGNING (author) / ZHU YANRAN (author) / ZHANG ZHONGQI (author) / MAO JINYONG (author) / DING CHEN (author) / PENG CHEN (author) / ZHANG YUKUN (author)
2023-12-08
Patent
Electronic Resource
Chinese
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