﻿648 
  NEW 
  YORK 
  STATE 
  MUSEUM 
  

  

  Tests 
  of 
  Hayerstraw 
  brick 
  made 
  by 
  M. 
  Abbott. 
  JSTo 
  packing 
  

   was 
  put 
  between 
  brick 
  and 
  plate 
  of 
  testing 
  macliine. 
  

  

  Crushing 
  

   strength 
  in 
  

   lb. 
  per 
  sq. 
  in. 
  

  

  , 
  Maximum 
  3 
  060 
  

  

  Whole 
  brick 
  tested 
  on 
  end. 
  . 
  . 
  } 
  Minimum 
  1600 
  

  

  ( 
  Average 
  2 
  065 
  

  

  , 
  Maximum 
  4 
  153 
  

  

  Half 
  brick 
  tested 
  on 
  flat 
  side. 
  ) 
  Minimum 
  2669 
  

  

  ( 
  Average 
  3 
  371 
  

  

  , 
  Maximum 
  . 
  6 
  400 
  

  

  Half 
  brick 
  tested 
  on 
  edge 
  • 
  • 
  • 
  •< 
  Minimum 
  2 
  900 
  

  

  ( 
  Average 
  4 
  612 
  

  

  Tests 
  of 
  ^N^ewfield 
  brick 
  made 
  at 
  Cornell 
  university. 
  

  

  Lb. 
  per 
  

  

  sq. 
  in. 
  

  

  Repressed 
  brick 
  14 
  990 
  

  

  Common 
  9 
  300 
  

  

  Common 
  10 
  900 
  

  

  Common 
  from 
  top 
  clay 
  7 
  880 
  

  

  Some 
  years 
  ago 
  E. 
  S. 
  Fickes 
  made 
  a 
  number 
  of 
  crushing 
  and 
  

   absorption 
  tests 
  of 
  common 
  brick 
  (Eng. 
  news. 
  1894. 
  32 
  :495), 
  from 
  

   which 
  the 
  following 
  tests 
  of 
  E'ew 
  York 
  products 
  are 
  derived. 
  

  

  Locality 
  

  

  Rochester 
  .... 
  

  

  Total 
  Pressure 
  

  

  absorption 
  P%^Sfn|' 
  ^^^'"''^^ 
  

  

  12 
  . 
  2^ 
  8 
  460 
  Clay 
  and 
  sand 
  

  

  Fishkill 
  14.8^ 
  5 
  840 
  

  

  Troy 
  15.1^ 
  4 
  400 
  

  

  Clay 
  

  

  Clay 
  and 
  sand 
  

  

  Machine 
  

  

  Soft 
  mud; 
  hard; 
  

  

  common 
  

   Soft 
  mud 
  

   Soft 
  mud; 
  hard; 
  

  

  common 
  

  

  Tests 
  of 
  building 
  and 
  other 
  hricTc 
  

  

  A 
  large 
  series 
  of 
  shearing, 
  crushing 
  and 
  absorption 
  tests 
  have 
  

   been 
  made 
  at 
  the 
  Watertown 
  (Massachusetts) 
  arsenal 
  on 
  material 
  

  

  