Discarded fired brick regeneration C35 synthetic fiber concretes and preparation method thereof

Discarded fired brick regeneration C35 synthetic fiber concretes and preparation method thereof

  • CN 104,529,334 B
  • Filed: 12/20/2014
  • Issued: 06/05/2018
  • Est. Priority Date: 12/20/2014
  • Status: Active Grant
First Claim
Patent Images

1. a kind of discarded fired brick regeneration C35 synthetic fiber concretes, which is characterized in that by cement, synthetic fibers, discarded sinteringBrick regenerated coarse aggregate, fine aggregate, water and water-reducing agent in mass ratio 1:

  • 0.011~0.018;

    1.679~1.737;

    0.653~0.817;

    0.367~0.397;

    0.006~0.010 is formulated;

    The synthetic fibers are waveform polyolefin crude fibre or continuous indentation shape polyolefin crude fibre;

    The waveformPolyolefin coarse fiber diameter 0.60mm~0.80mm, 40~60mm of length, 530~560N/mm of tensile strength2, elasticity modulus is6.5~7.5GPa, 0.90~0.95g/cm of proportion3

    The continuous indentation shape polyolefin coarse fiber diameter 0.70mm~0.90mm, length 50mm~70mm, 580~630N/mm of tensile strength2, elasticity modulus be 9.5~10.5GPa, proportion 0.90~0.95g/cm3

    The discarded fired brick regenerated coarse aggregate comes from the discarded fired brick building waste of city-building dismounting, grain size d1For5mm~25mm, bulk density are 1600~1700kg/m3, crush index is 25~32%, and water absorption rate is 20%~30%;

    InstituteThe discarded fired brick regenerated coarse aggregate grain size d stated1Mass Distribution is:

    5mm≤

    d1

    10mm is 20%~25%, 10mm <

    d1

    16mm is 25%~30%, 16mm <

    d1

    20mm is 25%~30%, 20mm <

    d1

    25mm is 20%~30%;

    The fine aggregate be river sand or Machine-made Sand, apparent density 2500kg/m3~2700kg/m3, moisture content for 3%~5%, particle size range is:

    0.15mm~2.36mm;

    The fine aggregate grain size d2Mass Distribution is:

    0.15mm≤

    d2

    0.3mm is9%~13%, 0.3mm <

    d2

    0.6mm is 25~31%, 0.6mm <

    d2

    1.18mm is 35%~42%, 1.18mm <

    d2

    2.36mm is 20%~25%.

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