A platform for research: civil engineering, architecture and urbanism
A platform for research: civil engineering, architecture and urbanism
Steel slag curing agent and steel slag pavement base material prepared from same
The invention discloses a granular curing agent, which is a powdery reagent prepared by taking gypsum powder, a basic catalyst, silica fume, an early expanding agent, magnesium oxide and calcium chloride as main raw materials. The steel slag is used as aggregate of river sand, gravel and the like and completely replaces fine-grained soil to prepare the pavement base material, and heavy metals suchas hexavalent chromium, nickel and the like in the steel slag are cured by using CSH gel formed by hydration of cement, steel slag, an excitant and the like and an aluminum-phase-containing hydrationproduct, so that the problem of heavy metal pollution is solved. The aggregate curing agent is applied to preparation of a pavement base material, wherein the curing agent has excellent mechanical properties, water-resistant stability, crack resistance and durability, has excellent energy-saving and environment-friendly characteristics, can effectively reduce the construction cost, can be universally applied to the fields of roadbed and soft foundation treatment and the like, and has a wide application prospect.
本发明公开了一种粒料类固化剂，它为以石膏粉、碱性催化剂、硅灰、早期膨胀剂、氧化镁和氯化钙为主要原料制成的粉末状试剂。本发明将钢渣用作河沙和碎石等集料并完全取代细粒土制备路面基层材料，并且利用水泥、钢渣以及激发剂等水化形成的CSH凝胶和含铝相水化产物固化钢渣中的六价铬和镍等重金属，解决重金属污染问题。将所述粒料类固化剂应用于制备路面基层材料，具有优异的力学性能、抗水稳定性能、抗裂性能和耐久性，并具有优异的节能环保特性，可有效降低工程造价，还可普遍适用于道路基层、软基处理等领域，具有广泛的应用前景。
Steel slag curing agent and steel slag pavement base material prepared from same
The invention discloses a granular curing agent, which is a powdery reagent prepared by taking gypsum powder, a basic catalyst, silica fume, an early expanding agent, magnesium oxide and calcium chloride as main raw materials. The steel slag is used as aggregate of river sand, gravel and the like and completely replaces fine-grained soil to prepare the pavement base material, and heavy metals suchas hexavalent chromium, nickel and the like in the steel slag are cured by using CSH gel formed by hydration of cement, steel slag, an excitant and the like and an aluminum-phase-containing hydrationproduct, so that the problem of heavy metal pollution is solved. The aggregate curing agent is applied to preparation of a pavement base material, wherein the curing agent has excellent mechanical properties, water-resistant stability, crack resistance and durability, has excellent energy-saving and environment-friendly characteristics, can effectively reduce the construction cost, can be universally applied to the fields of roadbed and soft foundation treatment and the like, and has a wide application prospect.
本发明公开了一种粒料类固化剂，它为以石膏粉、碱性催化剂、硅灰、早期膨胀剂、氧化镁和氯化钙为主要原料制成的粉末状试剂。本发明将钢渣用作河沙和碎石等集料并完全取代细粒土制备路面基层材料，并且利用水泥、钢渣以及激发剂等水化形成的CSH凝胶和含铝相水化产物固化钢渣中的六价铬和镍等重金属，解决重金属污染问题。将所述粒料类固化剂应用于制备路面基层材料，具有优异的力学性能、抗水稳定性能、抗裂性能和耐久性，并具有优异的节能环保特性，可有效降低工程造价，还可普遍适用于道路基层、软基处理等领域，具有广泛的应用前景。
Steel slag curing agent and steel slag pavement base material prepared from same
一种钢渣固化剂及利用其制备的钢渣路面基层材料
TAN BO (author) / LI JINHUI (author) / YANG YI (author) / HOU DONGSHUAI (author) / XU WEI (author) / CHEN PING (author) / DING QINGJUN (author) / CAO JIERONG (author)
2020-10-02
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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