Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
High-strength continuous porous shale straw sintered brick and preparation method thereof
The invention discloses a high-strength continuous porous shale straw sintered brick and a preparation method thereof, and belongs to the technical field of building materials. The preparation method comprises the steps of mixing and sintering raw materials to prepare the sintered brick, wherein the raw materials comprise the following components in parts by mass: 30-100 parts of shale, 10-50 parts of modified straws and 8-60 parts of industrial waste residues. The preparation method of the modified straw comprises the steps of firstly, putting straw at least comprising 18.5 wt% of cellulose into a reagent Y, soaking for 8 hours or above, filtering, then putting the straw into a reagent X, soaking for 16 hours or above, and drying to obtain the modified straw, wherein the reagent Y is prepared from 0.05 wt% to 5 wt% of alginate radicals; the reagent X comprises 0.01 mol/L to 2 mol/L of Aa < + > and 0.005 mol/L to 1 mol/L of OH <->, the Aa < + > is a metal ion, and a is greater than or equal to 2; and the mass concentration ratio of alginate radicals to Aa < + > is (6-15): 1. According to the method, a high-strength and high-toughness cellulose network can be formed in the straw, and the mechanical property and porosity of the sintered brick are improved.
本发明公开了一种高强度连续多孔页岩秸秆烧结砖及其制备方法，属于建筑材料技术领域。它包括将原料混合烧结制备出所述烧结砖；所述原料包括质量比为30份～100份的页岩、10份～50份的改性秸秆和8份～60份的工业废渣；所述改性秸秆的制备方法为：先将至少包括18.5wt％纤维素的秸秆放入试剂Y中浸泡8h以上，过滤后再将秸秆放入试剂X中浸泡16h以上，干燥得到改性秸秆；所述试剂Y中包括0.05wt％～5wt％的海藻酸根；所述试剂X中包括0.01mol/L～2mol/L的Aa+和0.005mol/L～1mol/L的OH‑，所述Aa+为金属离子，其中a≥2；所述海藻酸根和Aa+的质量浓度比为(6～15)：1。本发明能够在秸秆中形成高强度高韧性的纤维素网络，提升烧结砖的机械性能和孔隙率。
High-strength continuous porous shale straw sintered brick and preparation method thereof
The invention discloses a high-strength continuous porous shale straw sintered brick and a preparation method thereof, and belongs to the technical field of building materials. The preparation method comprises the steps of mixing and sintering raw materials to prepare the sintered brick, wherein the raw materials comprise the following components in parts by mass: 30-100 parts of shale, 10-50 parts of modified straws and 8-60 parts of industrial waste residues. The preparation method of the modified straw comprises the steps of firstly, putting straw at least comprising 18.5 wt% of cellulose into a reagent Y, soaking for 8 hours or above, filtering, then putting the straw into a reagent X, soaking for 16 hours or above, and drying to obtain the modified straw, wherein the reagent Y is prepared from 0.05 wt% to 5 wt% of alginate radicals; the reagent X comprises 0.01 mol/L to 2 mol/L of Aa < + > and 0.005 mol/L to 1 mol/L of OH <->, the Aa < + > is a metal ion, and a is greater than or equal to 2; and the mass concentration ratio of alginate radicals to Aa < + > is (6-15): 1. According to the method, a high-strength and high-toughness cellulose network can be formed in the straw, and the mechanical property and porosity of the sintered brick are improved.
本发明公开了一种高强度连续多孔页岩秸秆烧结砖及其制备方法，属于建筑材料技术领域。它包括将原料混合烧结制备出所述烧结砖；所述原料包括质量比为30份～100份的页岩、10份～50份的改性秸秆和8份～60份的工业废渣；所述改性秸秆的制备方法为：先将至少包括18.5wt％纤维素的秸秆放入试剂Y中浸泡8h以上，过滤后再将秸秆放入试剂X中浸泡16h以上，干燥得到改性秸秆；所述试剂Y中包括0.05wt％～5wt％的海藻酸根；所述试剂X中包括0.01mol/L～2mol/L的Aa+和0.005mol/L～1mol/L的OH‑，所述Aa+为金属离子，其中a≥2；所述海藻酸根和Aa+的质量浓度比为(6～15)：1。本发明能够在秸秆中形成高强度高韧性的纤维素网络，提升烧结砖的机械性能和孔隙率。
High-strength continuous porous shale straw sintered brick and preparation method thereof
一种高强度连续多孔页岩秸秆烧结砖及其制备方法
ZHANG YUQIN (Autor:in)
08.02.2022
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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