混凝土
混凝土
혼응토
CONCRETE
2014年
11期
90-92,99
,共4页
再生混凝土%橡胶颗粒%劈裂抗拉%立方体抗压
再生混凝土%橡膠顆粒%劈裂抗拉%立方體抗壓
재생혼응토%상효과립%벽렬항랍%립방체항압
recycled concrete%rubber particles%tensile splitting%cube compressive strength
通过在再生混凝土中加入不同掺量的橡胶颗粒和纳米材料，分析橡胶颗粒、纳米材料和龄期对再生混凝土的抗压强度和抗拉强度影响。试验表明：再生混凝土的抗压强度随着混凝土中橡胶颗粒的掺量的增加而降低，当再生混凝土中的橡胶颗粒掺量为3%时，混凝土的立方体抗压强度减小量最少，为7.73%；再生混凝土的抗拉强度先是随着橡胶颗粒的掺量的增加而增加，而后随着橡胶颗粒掺量的增加而减小，其中当橡胶颗粒的掺量为3%时，抗拉强度达到最高，较再生混凝土提高2.58%。掺入纳米材料可以较大幅度的提高再生混凝土的抗压强度，尤其可以提高再生混凝土的早期强度；再生混凝土的早期强度增长速度较大，而后期增长效果并不明显。
通過在再生混凝土中加入不同摻量的橡膠顆粒和納米材料，分析橡膠顆粒、納米材料和齡期對再生混凝土的抗壓彊度和抗拉彊度影響。試驗錶明：再生混凝土的抗壓彊度隨著混凝土中橡膠顆粒的摻量的增加而降低，噹再生混凝土中的橡膠顆粒摻量為3%時，混凝土的立方體抗壓彊度減小量最少，為7.73%；再生混凝土的抗拉彊度先是隨著橡膠顆粒的摻量的增加而增加，而後隨著橡膠顆粒摻量的增加而減小，其中噹橡膠顆粒的摻量為3%時，抗拉彊度達到最高，較再生混凝土提高2.58%。摻入納米材料可以較大幅度的提高再生混凝土的抗壓彊度，尤其可以提高再生混凝土的早期彊度；再生混凝土的早期彊度增長速度較大，而後期增長效果併不明顯。
통과재재생혼응토중가입불동참량적상효과립화납미재료，분석상효과립、납미재료화령기대재생혼응토적항압강도화항랍강도영향。시험표명：재생혼응토적항압강도수착혼응토중상효과립적참량적증가이강저，당재생혼응토중적상효과립참량위3%시，혼응토적립방체항압강도감소량최소，위7.73%；재생혼응토적항랍강도선시수착상효과립적참량적증가이증가，이후수착상효과립참량적증가이감소，기중당상효과립적참량위3%시，항랍강도체도최고，교재생혼응토제고2.58%。참입납미재료가이교대폭도적제고재생혼응토적항압강도，우기가이제고재생혼응토적조기강도；재생혼응토적조기강도증장속도교대，이후기증장효과병불명현。
Through the recycled concrete with different dosage of rubber particles and nano materials,analysis of rubber particles,nano-materials and ages on compressive strength and tensile strength of recycled concrete.Test showd that the compressive strength of recycled concrete with the increase of dosage of rubber particles in the concrete and reduce,when 3%dosage of rubber particles in recycled con-crete,concrete cube compressive strength reduction was the least,7.73%;First the tensile strength of recycled concrete with rubber parti-cles increase with the increase of the content,and then decreased with the increase of dosage of rubber particles,including when rubber particle content of 3%,reached the highest tensile strength of recycled concrete was increased by 2.58%.Incorporation of nano materials can significantly increase the compressive strength of recycled concrete,especially can improve the early strength of recycled concrete;Re-cycled concrete early strength growth rate was larger,and the late growth effect was not obvious.
