Fiber-reinforced ecological concrete and preparation method thereof
An ecological concrete and fiber-reinforced technology, applied in the intersecting fields of marine sessile organisms and marine concrete, can solve the problems of low oyster larvae attachment efficiency, large calcium material content, poor concrete durability, etc., to solve mold and reduce the content , the effect of strong adhesion
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Embodiment 1
[0048] Example 1: The proportion of ordinary Portland cement concrete, the weight ratio of ordinary Portland cement, gravel, sand, water and polycarboxylate superplasticizer powder is: 17.1%, 46.67%, 29.0%, 7.2% , 0.03%.
[0049] The parent rock of the crushed stone is one of basalt and diabase, and its maximum particle size is no more than 50mm, and the gradation is good; the sand is river sand and machine-made sand (the parent rock is granite, basalt, one) or one or several types of desalinated sea sand, with good gradation. The water mentioned should meet the concrete water standard (JGJ63-2006), Cl - Content4.5, little effect on cement initial setting time difference and final setting time, strength and permeability. And the above materials selected in Examples 1-22 are the same.
Embodiment 2
[0050] Embodiment 2: benchmark concrete mix ratio, ordinary Portland cement, silica fume, blast furnace slag powder, crushed stone, sand, water and polycarboxylate superplasticizer powder weight ratio are: 10.26%, 0.86%, 5.98% , 46.67%, 29.0%, 7.2%, 0.03%.
[0051]
[0052] The above examples show that mixing blast furnace slag powder and silica fume into concrete can not only fill the gaps between cement and other particles, but also produce pozzolanic reactions, thereby improving the interface microstructure of the transition zone, which not only ensures the basic strength of concrete, but also Reduce the alkalinity and permeability of concrete itself. While achieving the effect of reducing the alkalinity difference between the concrete and its contact with seawater, its low permeability can also control the release rate of alkali, and finally make it easier for oyster larvae to attach to the concrete surface.
Embodiment 3
[0053] Embodiment 3: The weight ratio of unmodified dark pigment, ordinary Portland cement, silica fume, blast furnace slag powder, crushed stone, sand, water and polycarboxylate water reducing agent powder is: 0.51%, 10.26%, 0.79%, 5.54%, 46.67%, 29.0%, 7.2%, 0.03%.
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