Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Cold-bonded high-content ardealite-based high-strength lightweight aggregate as well as preparation method and application thereof
The invention discloses a cold-bonding large-dosage phosphogypsum-based high-strength lightweight aggregate and a preparation method and application thereof.The phosphogypsum-based lightweight aggregate is prepared from a large amount of phosphogypsum, slag, cement and rubber powder, and the water spraying amount, the inclination angle of granulation and the rotating speed in the preparation process are optimized and adjusted; the ardealite-based lightweight aggregate prepared by the method is uniform in particle size, the strength is improved to 10.3 MPa, the water absorption rate is reduced to 6.60%, and the ardealite-based lightweight aggregate has good stability in long-term water saturation and dry-wet cycle environments. In addition, when the prepared ardealite-based lightweight aggregate is applied to concrete, the concrete can have high mechanical properties, good shrinkage performance and thermal insulation performance, waste ardealite is recycled, the preparation cost of the lightweight aggregate and the concrete is reduced, the pollution to the environment is reduced, and the ardealite-based lightweight aggregate has wide application potential.
本发明公开了冷粘结大掺量磷石膏基高强轻集料及制备方法和应用，利用大量的磷石膏与矿渣、水泥、胶粉制备得到了一种磷石膏基轻集料，并对制备过程中喷水量、造粒的倾角和转速进行优化调整，使得制备得到的磷石膏基轻集料粒径均匀，强度提高至10.3MPa，吸水率降低至6.60%，在长期饱水和干湿循环环境中具有良好的稳定性。此外将制备得到的磷石膏基轻集料应用于混凝土中，可以使混凝土具有较强力学性能、良好的收缩性能和保温性能，使废弃的磷石膏资源化、降低轻集料和混凝土的制备成本，并降低了对环境的污染，具有广泛应用的潜力。
Cold-bonded high-content ardealite-based high-strength lightweight aggregate as well as preparation method and application thereof
The invention discloses a cold-bonding large-dosage phosphogypsum-based high-strength lightweight aggregate and a preparation method and application thereof.The phosphogypsum-based lightweight aggregate is prepared from a large amount of phosphogypsum, slag, cement and rubber powder, and the water spraying amount, the inclination angle of granulation and the rotating speed in the preparation process are optimized and adjusted; the ardealite-based lightweight aggregate prepared by the method is uniform in particle size, the strength is improved to 10.3 MPa, the water absorption rate is reduced to 6.60%, and the ardealite-based lightweight aggregate has good stability in long-term water saturation and dry-wet cycle environments. In addition, when the prepared ardealite-based lightweight aggregate is applied to concrete, the concrete can have high mechanical properties, good shrinkage performance and thermal insulation performance, waste ardealite is recycled, the preparation cost of the lightweight aggregate and the concrete is reduced, the pollution to the environment is reduced, and the ardealite-based lightweight aggregate has wide application potential.
本发明公开了冷粘结大掺量磷石膏基高强轻集料及制备方法和应用，利用大量的磷石膏与矿渣、水泥、胶粉制备得到了一种磷石膏基轻集料，并对制备过程中喷水量、造粒的倾角和转速进行优化调整，使得制备得到的磷石膏基轻集料粒径均匀，强度提高至10.3MPa，吸水率降低至6.60%，在长期饱水和干湿循环环境中具有良好的稳定性。此外将制备得到的磷石膏基轻集料应用于混凝土中，可以使混凝土具有较强力学性能、良好的收缩性能和保温性能，使废弃的磷石膏资源化、降低轻集料和混凝土的制备成本，并降低了对环境的污染，具有广泛应用的潜力。
Cold-bonded high-content ardealite-based high-strength lightweight aggregate as well as preparation method and application thereof
一种冷粘结大掺量磷石膏基高强轻集料及制备方法和应用
XU GANG (Autor:in) / GAO SHUCHANG (Autor:in) / WANG QING (Autor:in) / LIU YIBO (Autor:in) / YAN MENGYU (Autor:in)
25.08.2023
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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