A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Gradient pore structure geopolymer asphalt mixture warm mixing agent and preparation method thereof
The invention discloses a gradient pore structure geopolymer asphalt mixture warm mixing agent which is composed of the following components in parts by weight: 65-85 parts of regenerated micro powder, 15-35 parts of rice hull ash, 15-20 parts of a sodium silicate solution, 5-10 parts of sodium hydroxide and 10-20 parts of deionized water. The invention also discloses a preparation method of the geopolymer asphalt mixture warm mixing agent. The geopolymer asphalt mixture warm-mixing agent has a gradient pore structure and has no closed pores or semi-closed pores, so that the water carrying capacity in the geopolymer asphalt mixture warm-mixing agent can be greatly improved, and the pore structure is arranged in a gradient manner (gradually released from large pores to small pores), so that the water release period of the warm-mixing agent can be effectively prolonged, and meanwhile, the water release rate can be uniform; compared with a hot-mixed asphalt mixture, the geopolymer asphalt warm-mixing agent with the gradient pore structure has the advantages that the mixing temperature of the asphalt mixture can be remarkably reduced, and meanwhile, the high and low temperature performance, the water damage resistance and the fatigue resistance of the asphalt mixture can be improved.
本发明公开了一种梯度孔结构地聚合物沥青混合料温拌剂，由如下重量份数的组分组成：再生微粉65～85份、稻壳灰15～35份、硅酸钠溶液15～20份、氢氧化钠5～10份和去离子水10～20份。本发明还公开了上述地聚合物沥青混合料温拌剂的制备方法。本发明地聚合物沥青混合料温拌剂具有梯度孔结构，且无封闭孔或半封闭孔，从而能够大幅提高其内部的载水量，并且由于孔结构呈梯度排布(由大孔到小孔逐步释放)，因此能够有效提高温拌剂的水分释放周期，同时还能使释水的速率均匀；与热拌沥青混合料相比，本发明梯度孔结构地聚合物沥青温拌剂能够显著降低沥青混合料的拌合温度，同时还能提高沥青混合料的高低温性能、抗水损坏性能以及抗疲劳性能。
Gradient pore structure geopolymer asphalt mixture warm mixing agent and preparation method thereof
The invention discloses a gradient pore structure geopolymer asphalt mixture warm mixing agent which is composed of the following components in parts by weight: 65-85 parts of regenerated micro powder, 15-35 parts of rice hull ash, 15-20 parts of a sodium silicate solution, 5-10 parts of sodium hydroxide and 10-20 parts of deionized water. The invention also discloses a preparation method of the geopolymer asphalt mixture warm mixing agent. The geopolymer asphalt mixture warm-mixing agent has a gradient pore structure and has no closed pores or semi-closed pores, so that the water carrying capacity in the geopolymer asphalt mixture warm-mixing agent can be greatly improved, and the pore structure is arranged in a gradient manner (gradually released from large pores to small pores), so that the water release period of the warm-mixing agent can be effectively prolonged, and meanwhile, the water release rate can be uniform; compared with a hot-mixed asphalt mixture, the geopolymer asphalt warm-mixing agent with the gradient pore structure has the advantages that the mixing temperature of the asphalt mixture can be remarkably reduced, and meanwhile, the high and low temperature performance, the water damage resistance and the fatigue resistance of the asphalt mixture can be improved.
本发明公开了一种梯度孔结构地聚合物沥青混合料温拌剂，由如下重量份数的组分组成：再生微粉65～85份、稻壳灰15～35份、硅酸钠溶液15～20份、氢氧化钠5～10份和去离子水10～20份。本发明还公开了上述地聚合物沥青混合料温拌剂的制备方法。本发明地聚合物沥青混合料温拌剂具有梯度孔结构，且无封闭孔或半封闭孔，从而能够大幅提高其内部的载水量，并且由于孔结构呈梯度排布(由大孔到小孔逐步释放)，因此能够有效提高温拌剂的水分释放周期，同时还能使释水的速率均匀；与热拌沥青混合料相比，本发明梯度孔结构地聚合物沥青温拌剂能够显著降低沥青混合料的拌合温度，同时还能提高沥青混合料的高低温性能、抗水损坏性能以及抗疲劳性能。
Gradient pore structure geopolymer asphalt mixture warm mixing agent and preparation method thereof
一种梯度孔结构地聚合物沥青混合料温拌剂及其制备方法
XU JUN (author) / KANG AIHONG (author) / WU ZHENGGUANG (author) / WU BANGWEI (author) / GONG YONGFAN (author) / XIAO PENG (author)
2025-01-21
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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