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A platform for research: civil engineering, architecture and urbanism
Method for controlling shrinkage performance of alkali-activated slag mortar by using basalt fibers
The invention relates to the field of building materials, in particular to a method for controlling the shrinkage performance of alkali-activated slag mortar by using basalt fiber, which comprises the following raw materials in parts by weight: 36.7% of blast furnace slag, 45% of sand, 18.3% of exciting agent (2.314% of sodium hydroxide, 2.726% of water glass and 13.26% of water), and 0.25-1% of basalt fiber (accounting for the volume percentage of mortar). The concrete operation of the invention is to mix the blast furnace slag, the sand, the exciting agent and the basalt fiber according to the above components and contents. The basalt fiber is added into the alkali-activated slag mortar, so that the drying shrinkage of the alkali-activated slag mortar can be effectively reduced under the condition of low mixing amount, and the compressive strength of the alkali-activated slag mortar is improved. The optimal mixing amount of basalt is 0.75%, and when the basalt is 28 days old, compared with a reference group, the dry shrinkage value is reduced by 30%, and the compressive strength is improved by 21.1%.
本发明涉及建筑材料领域，具体涉及一种使用玄武岩纤维控制碱激发矿渣砂浆收缩性能的方法，包括以下原料的重量份组成：高炉矿渣36.7％、砂45％、激发剂18.3％(氢氧化钠2.314％，水玻璃2.726％，水13.26％)、玄武岩纤维体积掺量为0.25％～1％(占砂浆体积百分比)。本发明具体操作是将上述组分及含量的高炉矿渣、砂、激发剂、玄武岩纤维进行混合。本发明将玄武岩纤维加入碱激发矿渣砂浆中，在低掺量的条件下即可有效减小碱激发矿渣砂浆的干燥收缩，并且提高了碱激发矿渣砂浆的抗压强度。其中，玄武岩最佳掺量为0.75％，28天龄期时，与基准组相比干缩值减小了30％，抗压强度提高了21.1％。
Method for controlling shrinkage performance of alkali-activated slag mortar by using basalt fibers
The invention relates to the field of building materials, in particular to a method for controlling the shrinkage performance of alkali-activated slag mortar by using basalt fiber, which comprises the following raw materials in parts by weight: 36.7% of blast furnace slag, 45% of sand, 18.3% of exciting agent (2.314% of sodium hydroxide, 2.726% of water glass and 13.26% of water), and 0.25-1% of basalt fiber (accounting for the volume percentage of mortar). The concrete operation of the invention is to mix the blast furnace slag, the sand, the exciting agent and the basalt fiber according to the above components and contents. The basalt fiber is added into the alkali-activated slag mortar, so that the drying shrinkage of the alkali-activated slag mortar can be effectively reduced under the condition of low mixing amount, and the compressive strength of the alkali-activated slag mortar is improved. The optimal mixing amount of basalt is 0.75%, and when the basalt is 28 days old, compared with a reference group, the dry shrinkage value is reduced by 30%, and the compressive strength is improved by 21.1%.
本发明涉及建筑材料领域，具体涉及一种使用玄武岩纤维控制碱激发矿渣砂浆收缩性能的方法，包括以下原料的重量份组成：高炉矿渣36.7％、砂45％、激发剂18.3％(氢氧化钠2.314％，水玻璃2.726％，水13.26％)、玄武岩纤维体积掺量为0.25％～1％(占砂浆体积百分比)。本发明具体操作是将上述组分及含量的高炉矿渣、砂、激发剂、玄武岩纤维进行混合。本发明将玄武岩纤维加入碱激发矿渣砂浆中，在低掺量的条件下即可有效减小碱激发矿渣砂浆的干燥收缩，并且提高了碱激发矿渣砂浆的抗压强度。其中，玄武岩最佳掺量为0.75％，28天龄期时，与基准组相比干缩值减小了30％，抗压强度提高了21.1％。
Method for controlling shrinkage performance of alkali-activated slag mortar by using basalt fibers
一种使用玄武岩纤维控制碱激发矿渣砂浆收缩性能的方法
WANG PENGJU (author) / PAN JIN (author) / CHEN HAIMING (author) / CHEN PEIYUAN (author) / WANG LIANG (author)
2021-07-13
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
Shrinkage Characteristics of Alkali-Activated Slag Mortar with SAP
| Springer Verlag | 2016
Alkali activated slag mortar. Mechanical strengths, shrinkage and structure
| UB Braunschweig | 1990