论文部分内容阅读
1963年我們試制了多孔粘土空心砖。其中比較好的有52孔砖,抗压强度平均达到159.8kg/cm~2,比用这种土制成的实心砖的强度还高(实心砖强度为75～100kg/cm~2之間)。現将我們的試制情况簡要介紹如下: 一、原料土的性能試制多孔用的粘土,是原生产实心砖所用的粘土。这种粘土的可塑性指数只有7.5左右,其中还有2%以上的不溶顆粒(粒径大于0.5mm的)。二、机械設备所用的制砖机是原生产实心砖的中型单龙口螺旋挤泥机(实心砖坯的产量为4.5万块/班),試制多孔砖时作了部分修改。其主要规格如下(附带搅拌机): 1.双軸搅拌机。槽长2m;軸轉数为44轉/分;
In 1963 we tried out porous clay hollow bricks. Among them, 52-hole bricks are relatively good, and the average compressive strength is 159.8kg/cm~2, which is higher than that of solid bricks made of such soil (solid brick strength is between 75 and 100 kg/cm~2). . Now we briefly introduce the trial production situation as follows: First, the performance of raw material clay Porous clay used in the trial, is the original production of solid brick clay used. The plasticity index of this clay is only about 7.5, and there are more than 2% of insoluble particles (particle size greater than 0.5mm). 2. The brick making machine used in machinery and equipment is a medium-sized single-long spiral screw compactor (solid brick production of 45,000 blocks per shift) that originally produced solid bricks. Some modifications were made when the perforated brick was manufactured. Its main specifications are as follows (with mixer): 1. Double shaft mixer. Slot length 2m; shaft rotation is 44 rev/min;