| 1. | Research on the hydrate mechanism of green and low - alkali concrete expansion agent 绿色低碱混凝土膨胀剂水化机理研究 |
| 2. | The thesis studies the influence of compounding polypropylene fiber and expansion agent to plastic shrinkage of mortar 摘要混凝土的塑性收缩裂缝,是其结构原生缺陷的主要来源,无论是否可见,都会影响混凝土的耐久性。 |
| 3. | Abstract : the article concludes the function of concrete ? expansion agent and some problems in application , also tells us how to take measures to solve it 摘要:文章介绍混凝土膨剂的功能及在使用中存在的问题和解决措施。 |
| 4. | The influence of shrinkage - reducing agent , polypropylene fiber and expansion agent on strength and dry shrinkage of the concrete were systematically tested 系统测试了减缩剂、聚丙烯纤维和膨胀剂对砌块材料强度和干缩性能的影响规律。 |
| 5. | By routine test and base experience , with contrastive method , the appropriate mix content and the effect to concrete strength of a kind of expansion agent were studied 摘要通过常规实验和基础实验,采用对比的方法,研究了膨胀剂的适宜掺量和对水泥砂浆强度的影响。 |
| 6. | The research and application of organic shrinkage reducing agent ( sra ) and non - organic expansion agent ( ea ) are drawing great attention among that of new - type concrete anti - cracking admixtures 摘要在新型混凝土抗裂外加剂中,有机类减缩剂及无机膨胀剂的研究与应用受到了广泛的关注。 |
| 7. | Making use of traditional methods of compensating shrinkage , that is , added with appropriate expansion agent , compensating for the shrinkage of super high strength & high performance concrete has been realized 本研究采用传统的补偿收缩方法,在超高强混凝土中掺入合适的膨胀剂后,达到了补偿超高强混凝土收缩的目的。 |
| 8. | Among them , shrinkage - reducing agent and expansion agent were more effective to respectively reduce and compensate early age shrinkage of the concrete , on the contrary , polypropylene fiber was the most effective to restrain medium and long - term shrinkage of the concrete 其中,减缩剂和膨胀剂的减缩与补偿收缩的效果主要表现在早期,而聚丙烯纤维的中长期限制效果最好。然后进行空心砌块的改性试验研究。 |
| 9. | Based on the shrinkage analysis of cement - stabilized aggregate mixture , the performance of cement - stabilized aggregate mixtures with expansion agent or fibre . compared with that without admixtures , such as mechanical property . shrinkage , anti - freeze and durability are studied 同时,分别研究了加膨胀剂和纤维水泥稳定碎石力学性能、收缩性能、抗冻性能和耐久性等路面结构性能,并与没外加剂水泥稳定碎石作比较。 |
| 10. | From the beginning of the establishment , insisting on the business idea of " talents base , science superior , quality first , credit paramountcy " and quality principle of " relying on science and technology , strict management , good quality , satisfied services " , the company has imported the patents of uea - h high performance expansion agent and fdn 地处重庆市北碚区三圣镇,是混凝土外加剂及特种建筑材料专业生产公司。我公司自成立之初就本着“人才为本科技为先质量第一信誉至上”的经营理念,坚持“依靠科技管理上乘品质优异服务满意” |