混凝土与水泥制品
混凝土與水泥製品
혼응토여수니제품
CHINA CONCRETE AND CEMENT PRODUCTS
2015年
1期
82-86
,共5页
混掺砂浆%钢屑%铁砂%压敏性能%电阻率
混摻砂漿%鋼屑%鐵砂%壓敏性能%電阻率
혼참사장%강설%철사%압민성능%전조솔
Mixed cement mortar%Steel scrap%Iron sand%Varistor properties%Resistivity
在砂浆中混掺钢屑和铁砂两种工业废弃料,制备得到环保低成本的水泥基复合材料,在测定其抗压强度的基础上采用交流两电极法研究其导电性能和压敏性能,并分析研究了混掺掺量、弹塑性荷载、不同加载速率以及冲击荷载等对其压敏性的影响。试验结果表明,随着导电材料掺量增加,试件压敏性更加明显。加载速率越大,试件电阻率变化越大;冲击荷载数值对瞬间电阻率与卸载后电阻率均有较大影响。
在砂漿中混摻鋼屑和鐵砂兩種工業廢棄料,製備得到環保低成本的水泥基複閤材料,在測定其抗壓彊度的基礎上採用交流兩電極法研究其導電性能和壓敏性能,併分析研究瞭混摻摻量、彈塑性荷載、不同加載速率以及遲擊荷載等對其壓敏性的影響。試驗結果錶明,隨著導電材料摻量增加,試件壓敏性更加明顯。加載速率越大,試件電阻率變化越大;遲擊荷載數值對瞬間電阻率與卸載後電阻率均有較大影響。
재사장중혼참강설화철사량충공업폐기료,제비득도배보저성본적수니기복합재료,재측정기항압강도적기출상채용교류량전겁법연구기도전성능화압민성능,병분석연구료혼참참량、탄소성하재、불동가재속솔이급충격하재등대기압민성적영향。시험결과표명,수착도전재료참량증가,시건압민성경가명현。가재속솔월대,시건전조솔변화월대;충격하재수치대순간전조솔여사재후전조솔균유교대영향。
Two industrial waste materials of steel crape and iron sand were mixed to add into cement system to pro-duce cement based composite material that was low cost and environment friendly. Its conductivity and varistor properties were studied by AC two wire method on the basis of the compressive strength test. And the effect of conducting waste con-tents, elastic-plastic loads, the various load rate and impact loads on the compression sensitivity of the composite material was studied and analyzed. The test results show that cement-based composite material has favorable varistor properties. With the increase of conducting material contents, the varistor properties of the composite material is more obvious; the greater the loading rate, the greater the resistance changes;the larger the impact load, the faster the resistivity falls.