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Pretreatment method of filler and high-strength concrete containing filler
The invention relates to the field of concrete, and particularly discloses a pretreatment method of filler and high-strength concrete containing the filler. The pretreatment method of the filler comprises the following steps: step 1), injecting a hydrofluoric acid solution with the concentration of 3-5% into broken stones until the broken stones are completely soaked, and stirring for 8-10 minutes; (2) discharging the hydrofluoric acid solution, and then injecting clear water while stirring to wash residual hydrofluoric acid on the surface of the gravel; and step 3), drying the cleaned broken stones at 150-160 DEG C to obtain the pretreated filler. The high-strength concrete comprises the following components in parts by mass: 100 parts of water; 260 to 261 parts of cement; 52.5 to 52.8 parts of slag powder; 38.3 to 38.6 parts of fly ash; 463.5 to 463.8 parts of sand; 825 to 826 parts of a filling material; 7.7 to 7.8 parts of an additive; the filler is prepared by the pretreatment method of the filler. The method has the effect of improving the strength of the concrete under the condition of not increasing the use amount of cement.
本发明涉及混凝土领域，具体公开了一种填料的预处理方法及含有该填料的高强混凝土。一种填料的预处理方法，包括以下步骤：步骤1），向碎石中注入浓度为3‑5%的氢氟酸溶液至完全浸泡碎石，搅拌8‑10min；步骤2），排出氢氟酸溶液，然后边搅拌边注入清水冲洗残留在碎石表面的氢氟酸；步骤3），将洗净的碎石在150‑160℃下烘干，得预处理后的填料。一种高强混凝土，包括以下质量份数的组分：水100份；水泥260‑261份；矿渣粉52.5‑52.8份；粉煤灰38.3‑38.6份；砂463.5‑463.8份；填料825‑826份；外加剂7.7‑7.8份；填料由上述的填料的预处理方法所制得。本发明具有在不增加水泥用量的条件下提高混凝土的强度的效果。
Pretreatment method of filler and high-strength concrete containing filler
The invention relates to the field of concrete, and particularly discloses a pretreatment method of filler and high-strength concrete containing the filler. The pretreatment method of the filler comprises the following steps: step 1), injecting a hydrofluoric acid solution with the concentration of 3-5% into broken stones until the broken stones are completely soaked, and stirring for 8-10 minutes; (2) discharging the hydrofluoric acid solution, and then injecting clear water while stirring to wash residual hydrofluoric acid on the surface of the gravel; and step 3), drying the cleaned broken stones at 150-160 DEG C to obtain the pretreated filler. The high-strength concrete comprises the following components in parts by mass: 100 parts of water; 260 to 261 parts of cement; 52.5 to 52.8 parts of slag powder; 38.3 to 38.6 parts of fly ash; 463.5 to 463.8 parts of sand; 825 to 826 parts of a filling material; 7.7 to 7.8 parts of an additive; the filler is prepared by the pretreatment method of the filler. The method has the effect of improving the strength of the concrete under the condition of not increasing the use amount of cement.
本发明涉及混凝土领域，具体公开了一种填料的预处理方法及含有该填料的高强混凝土。一种填料的预处理方法，包括以下步骤：步骤1），向碎石中注入浓度为3‑5%的氢氟酸溶液至完全浸泡碎石，搅拌8‑10min；步骤2），排出氢氟酸溶液，然后边搅拌边注入清水冲洗残留在碎石表面的氢氟酸；步骤3），将洗净的碎石在150‑160℃下烘干，得预处理后的填料。一种高强混凝土，包括以下质量份数的组分：水100份；水泥260‑261份；矿渣粉52.5‑52.8份；粉煤灰38.3‑38.6份；砂463.5‑463.8份；填料825‑826份；外加剂7.7‑7.8份；填料由上述的填料的预处理方法所制得。本发明具有在不增加水泥用量的条件下提高混凝土的强度的效果。
Pretreatment method of filler and high-strength concrete containing filler
填料的预处理方法及含有该填料的高强混凝土
ZHOU YILIN (author)
2022-05-10
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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