Method of preparing baking-free brick with dredge sediment aggregate
A technology for dredging sediment and unburned bricks, which is applied in the dredging industry and the field of building materials, can solve the problems such as patent publications that have not yet been found, and achieve the effects of simple maintenance steps, reduced production energy consumption, and reduced production costs
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[0038] Example 1
[0039] A method of utilizing dredged bottom mud aggregate to prepare unburned bricks, comprising the steps of:
[0040] 1. Screening of dredged sediment aggregates: the dredged sediment ceramsite is screened by a screening machine, and the ceramsite with a particle size range of 5 to 10 mm, a cylinder compressive strength of 2.75 MPa, and a water absorption rate of 10.2% is used as the dredged bottom. mud aggregate;
[0041] 2. Pretreatment of raw materials: Cement, quicklime, gypsum and fly ash are pulverized to 100 mesh and 10% moisture content by a pulverizer;
[0042] 3. Ingredients: Mix and stir the pretreated cement, quicklime, gypsum and fly ash to obtain a dry mixture, and weigh the dredged sediment aggregate. The ratio of the dry mixture to the dredged sediment aggregate is: Calculated according to the mass percentage of each raw material, cement 7%, quicklime 5%, gypsum 1.5%, fly ash 21.5%, dredging sediment aggregate 65%;
[0043] Wherein, each...
Example Embodiment
[0049] Example 2
[0050] A method of utilizing dredged bottom mud aggregate to prepare unburned bricks, comprising the steps of:
[0051] 1. Screening of dredged sediment aggregates: the dredged sediment ceramsite is screened by a screening machine, and the ceramsite with a particle size range of 4 to 9 mm, a cylinder compressive strength of 2.88 MPa and a water absorption rate of 9.8% is used as the dredged bottom. mud aggregate;
[0052] 2. Pretreatment of raw materials: Cement, quicklime, gypsum and fly ash are pulverized by a pulverizer to 150 mesh and a moisture content of 9.5%;
[0053] 3. Ingredients: Mix and stir the pretreated cement, quicklime, gypsum and fly ash to obtain a dry mixture, and weigh the dredged sediment aggregate. The ratio of the dry mixture to the dredged sediment aggregate is: According to the mass percentage of each raw material, cement 16%, quicklime 5%, gypsum 1.5%, fly ash 23.5%, dredging sediment aggregate 54%;
[0054] Wherein, each above-...
Example Embodiment
[0060] Example 3
[0061] A method of utilizing dredged bottom mud aggregate to prepare unburned bricks, comprising the steps of:
[0062] 1. Screening of dredged sediment aggregates: Use a screening machine to screen the dredged sediment ceramsite, the particle size range is 2-5mm, the cylinder compressive strength is 5.15MPa, and the water absorption rate is 9.5%. The ceramsite is used as the dredged sediment. aggregate;
[0063] 2. Pretreatment of raw materials: Cement, quicklime, gypsum and fly ash are pulverized to 200 mesh and moisture content of 9.3% by a pulverizer;
[0064] 3. Ingredients: Mix and stir the pretreated cement, quicklime, gypsum and fly ash to obtain a dry mixture, and weigh the dredged sediment aggregate. The ratio of the dry mixture to the dredged sediment aggregate is: Calculated according to the mass percentage of each raw material, cement 19%, quicklime 5%, gypsum 2.5%, fly ash 26.5%, dredging sediment aggregate 47%;
[0065] Wherein, each above-...
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