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A platform for research: civil engineering, architecture and urbanism
Recycled concrete with high slump loss resistance and preparation method thereof
The invention relates to the field of concrete, and particularly discloses recycled concrete with high slump loss resistance and a preparation method thereof. The concrete with high slump loss resistance is composed of the following raw materials in parts by weight: 300 to 350 parts of cement, 700 to 800 parts of natural fine aggregate, 1000 to 1200 parts of recycled coarse aggregate, 200 to 230 parts of water, 5 to 10 parts of a water reducing agent, 65 to 75 parts of fly ash, 4 to 10 parts of sodium allysulfonate, 5 to 12 parts of sodium tripolyphosphate, and 3 to 9 parts of maleic anhydride. The preparation method comprises the steps: mixing the cement, the natural fine aggregate, the recycled coarse aggregate, the fly ash and the water reducing agent in proportion, adding water, stirring, adding the sodium allysulfonate, the maleic anhydride and the sodium tripolyphosphate into the slurry, and continuously stirring uniformly to obtain the recycled concrete with high slump loss resistance. The concrete has the characteristic of improving the slump loss resistance and the compressive strength of the concrete.
本申请涉及混凝土领域，具体公开了一种高保坍性再生混凝土及其制备方法。一种高保坍性混凝土，由包括如下重量份的原料组成：水泥：300‑350份；天然细骨料：700‑800份；再生粗骨料：1000‑1200份；水：200‑230份；减水剂：5‑10份；粉煤灰：65‑75份；烯丙基磺酸钠：4‑10份；三聚磷酸钠：5‑12份；马来酸酐:3‑9份；其制备方法为：按比例将水泥、天然细骨料、再生粗骨料、粉煤灰和减水剂混合后加入水搅拌，然后再往浆料加入烯丙基磺酸钠、马来酸酐以及三聚磷酸钠继续搅拌均匀，得到高保坍性再生混凝土。本申请具有提高混凝土保坍性和抗压强度的特点。
Recycled concrete with high slump loss resistance and preparation method thereof
The invention relates to the field of concrete, and particularly discloses recycled concrete with high slump loss resistance and a preparation method thereof. The concrete with high slump loss resistance is composed of the following raw materials in parts by weight: 300 to 350 parts of cement, 700 to 800 parts of natural fine aggregate, 1000 to 1200 parts of recycled coarse aggregate, 200 to 230 parts of water, 5 to 10 parts of a water reducing agent, 65 to 75 parts of fly ash, 4 to 10 parts of sodium allysulfonate, 5 to 12 parts of sodium tripolyphosphate, and 3 to 9 parts of maleic anhydride. The preparation method comprises the steps: mixing the cement, the natural fine aggregate, the recycled coarse aggregate, the fly ash and the water reducing agent in proportion, adding water, stirring, adding the sodium allysulfonate, the maleic anhydride and the sodium tripolyphosphate into the slurry, and continuously stirring uniformly to obtain the recycled concrete with high slump loss resistance. The concrete has the characteristic of improving the slump loss resistance and the compressive strength of the concrete.
本申请涉及混凝土领域，具体公开了一种高保坍性再生混凝土及其制备方法。一种高保坍性混凝土，由包括如下重量份的原料组成：水泥：300‑350份；天然细骨料：700‑800份；再生粗骨料：1000‑1200份；水：200‑230份；减水剂：5‑10份；粉煤灰：65‑75份；烯丙基磺酸钠：4‑10份；三聚磷酸钠：5‑12份；马来酸酐:3‑9份；其制备方法为：按比例将水泥、天然细骨料、再生粗骨料、粉煤灰和减水剂混合后加入水搅拌，然后再往浆料加入烯丙基磺酸钠、马来酸酐以及三聚磷酸钠继续搅拌均匀，得到高保坍性再生混凝土。本申请具有提高混凝土保坍性和抗压强度的特点。
Recycled concrete with high slump loss resistance and preparation method thereof
一种高保坍性再生混凝土及其制备方法
PENG ZHIGUO (author)
2021-12-24
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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