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A platform for research: civil engineering, architecture and urbanism
Ferrochrome slag sand concrete fine aggregate and concrete containing same
The invention provides ferrochrome slag sand concrete fine aggregate. The ferrochrome slag sand concrete fine aggregate comprises 40%-45% of SiO2, 16%-18% of Al2O3, 2%-5% of Fe2O3, 2%-5% of CaO, 19%-23% of MgO, 0.15%-0.25% of SO3, 0.2%-0.5% of Na2O, 0.2%-0.5% of K2O and 5%-9% of Cr2O3. The invention further provides C30 concrete containing the ferrochrome slag sand concrete fine aggregate. The C30 concrete is prepared from 250 to 270 g of cement, 150 to 200 g of water, 100 to 120 g of coal ash, 900 to 1000 g of machine-made sand, 400 to 500 g of ferrochrome slag sand and 900 to 1000 g of gravel. The invention provides C50 concrete containing ferrochrome slag sand concrete fine aggregate. The C50 concrete is prepared from the following raw materials in parts by weight: 300 to 400g of cement, 160 to 180g of water, 80 to 100g of fly ash, 300 to 400g of machine-made sand, 350 to 450g of ferrochrome slag sand and 1000 to 1100g of gravel. The invention solves the problem that the existing steel slag cannot be recycled and pollutes the environment. The steel waste slag, ferrochrome slag and sand are used as the concrete fine aggregate, and compared with traditional limestone machine-made broken stone, the mechanical properties such as compressive strength and elastic modulus can be remarkably improved, and remarkable economic benefits are achieved.
本发明提供了一种铬铁渣砂混凝土细骨料，包括SiO240‑45％、Al2O316‑18％、Fe2O32‑5％、CaO 2‑5％、MgO 19‑23％、SO30.15‑0.25％、Na2O0.2‑0.5％、K2O 0.2‑0.5％、Cr2O35‑9％。本发明还提供了一种含有所述铬铁渣砂混凝土细骨料的C30混凝土，包括水泥250‑270g、水150‑200g、粉煤灰100‑120g、机制砂900‑1000g、铬铁渣砂400‑500g、碎石900‑1000g。本发明提供了一种含有铬铁渣砂混凝土细骨料的C50混凝土，是由以下重量份数原料组成：水泥300‑400g、水160‑180g、粉煤灰80‑100g、机制砂300‑400g、铬铁渣砂350‑450g、碎石1000‑1100g。本发明解决了现有钢铁废渣无法重复利用且污染环境的问题。本发明将钢铁废渣铬铁渣砂作为混凝土细骨料使用，与传统石灰岩机制碎石相比，能够显著提高抗压强度、弹性模量等力学性能，且具备显著的经济效益。
Ferrochrome slag sand concrete fine aggregate and concrete containing same
The invention provides ferrochrome slag sand concrete fine aggregate. The ferrochrome slag sand concrete fine aggregate comprises 40%-45% of SiO2, 16%-18% of Al2O3, 2%-5% of Fe2O3, 2%-5% of CaO, 19%-23% of MgO, 0.15%-0.25% of SO3, 0.2%-0.5% of Na2O, 0.2%-0.5% of K2O and 5%-9% of Cr2O3. The invention further provides C30 concrete containing the ferrochrome slag sand concrete fine aggregate. The C30 concrete is prepared from 250 to 270 g of cement, 150 to 200 g of water, 100 to 120 g of coal ash, 900 to 1000 g of machine-made sand, 400 to 500 g of ferrochrome slag sand and 900 to 1000 g of gravel. The invention provides C50 concrete containing ferrochrome slag sand concrete fine aggregate. The C50 concrete is prepared from the following raw materials in parts by weight: 300 to 400g of cement, 160 to 180g of water, 80 to 100g of fly ash, 300 to 400g of machine-made sand, 350 to 450g of ferrochrome slag sand and 1000 to 1100g of gravel. The invention solves the problem that the existing steel slag cannot be recycled and pollutes the environment. The steel waste slag, ferrochrome slag and sand are used as the concrete fine aggregate, and compared with traditional limestone machine-made broken stone, the mechanical properties such as compressive strength and elastic modulus can be remarkably improved, and remarkable economic benefits are achieved.
本发明提供了一种铬铁渣砂混凝土细骨料，包括SiO240‑45％、Al2O316‑18％、Fe2O32‑5％、CaO 2‑5％、MgO 19‑23％、SO30.15‑0.25％、Na2O0.2‑0.5％、K2O 0.2‑0.5％、Cr2O35‑9％。本发明还提供了一种含有所述铬铁渣砂混凝土细骨料的C30混凝土，包括水泥250‑270g、水150‑200g、粉煤灰100‑120g、机制砂900‑1000g、铬铁渣砂400‑500g、碎石900‑1000g。本发明提供了一种含有铬铁渣砂混凝土细骨料的C50混凝土，是由以下重量份数原料组成：水泥300‑400g、水160‑180g、粉煤灰80‑100g、机制砂300‑400g、铬铁渣砂350‑450g、碎石1000‑1100g。本发明解决了现有钢铁废渣无法重复利用且污染环境的问题。本发明将钢铁废渣铬铁渣砂作为混凝土细骨料使用，与传统石灰岩机制碎石相比，能够显著提高抗压强度、弹性模量等力学性能，且具备显著的经济效益。
Ferrochrome slag sand concrete fine aggregate and concrete containing same
一种铬铁渣砂混凝土细骨料及含有该组份的混凝土
HUO QIUGUI (author) / HUO SUQIN (author) / HUO SUHONG (author) / HUO DONGJIE (author)
2022-03-04
Patent
Electronic Resource
Chinese
IPC:
C04B
Kalk
,
LIME
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