庭若木钙减水�?参数-价格-中国粉体罐�/title>

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$(this).css({"color":"#1479d7","border-bottom-color":"#1479d7"}); }); }); </script>  <div class="cpjj"> <p><span style="font-family:宋体">木质素磺酸钙产品在混凝土减水剂方面的主要的应�?/span></p><p style=";text-indent: 21px"><span style="font-family:Times New Roman">1</span><span style="font-family:宋体">、木素磺酸钙产品在混凝土中减水增强作用的机理</span> <span style="font-family:宋体">木素磺酸钙和木素磺酸钠减水剂是一种表面活性剂，加入混凝土中后，由于憎水基团定向吸附于水泥颗粒表面，这样使水泥带有负电荷。具有相同电荷的水泥颗粒在电荷斥力的作用下相互斥离分散，水泥在加水初期形成的絮状结构变成分散结构，絮凝状凝聚体内的游离水被释放出来，从而达到减水剂的目的。观测表明，木钙加入混凝土后，混吇�/span><span style="font-family:Times New Roman">5</span><span style="font-family:宋体">分钟已有</span><span style="font-family:Times New Roman">80%</span><span style="font-family:宋体">以上的减水剂被吸附，在电子显微镜下清晰可见的水化点中心明显增加，水化物分布均匀，水化晶体纤维较长的各种微观特征。可见加入木素磺酸钙，游离水蒸发留下的毛细孔就少，内部结构密实，也就是说，孔隙率的降低显然有利于混凝土强度的提高，改善了水泥的孔隙结构的大小及其分布状况，使结晶生长速度延缓，晶体生长更充分，因而得到更多的纤维状晶体相互穿插，形成坚强的网络结构，从而使混凝土强度显著提高。因此，在混凝土中掺用木钙减水剂，可减少混凝土拌和物的用水量，降低水灰比，改善和易性，有利于泵送，提高混凝土强度、密实性和耐久性、�/span></p><p><span style="font-family:宋体">三、木钙减水剂主要性能指标与经济效枛�/span></p><p><span style="font-family:Times New Roman"> 1</span><span style="font-family:宋体">、改善混凝土性能</span> <span style="font-family:宋体">当水泥用量相同，坍落度与空白混凝土相近，可减少用水量</span><span style="font-family:Times New Roman">10</span><span style="font-family:宋体">–�/span><span style="font-family:Times New Roman">15%</span><span style="font-family:宋体">＋�/span><span style="font-family:Times New Roman">28</span><span style="font-family:
">天强度提髗�/span><span style="font-family:Times New Roman">10</span><span style="font-family:宋体">–�/span><span style="font-family:Times New Roman">20%</span><span style="font-family:宋体">＋�/span><span style="font-family:Times New Roman">1</span><span style="font-family:
">年强度提髗�/span><span style="font-family:Times New Roman">10%</span><span style="font-family:宋体">左右、�/span></p><p><span style="font-family:Times New Roman"> 2</span><span style="font-family:宋体">、节约水�?/span> <span style="font-family:宋体">当混凝土的强度和坍落度相近时，可节省水泥</span><span style="font-family:Times New Roman">10%</span><span style="font-family:宋体">左右，使�?/span><span style="font-family:Times New Roman">1</span><span style="font-family:宋体">吨减水剂可节�?/span><span style="font-family:Times New Roman">30</span><span style="font-family:宋体">–�/span><span style="font-family:Times New Roman">40</span><span style="font-family:
">吨水泥、�/span></p><p><span style="font-family:Times New Roman"> 3</span><span style="font-family:宋体">、改善混凝土和易�?/span> <span style="font-family:宋体">当混凝土的水泥用量和用水量不变，低塑性混凝土的坍落度可增大两倍左右，（由</span><span style="font-family:Times New Roman">3</span><span style="font-family:Times New Roman">-5cm</span><span style="font-family:宋体">提高�?/span><span style="font-family:Times New Roman">8</span><span style="font-family:Times New Roman">-18cm</span><span style="font-family:宋体">），早期强度与未掺者基本接近、�/span></p><p><span style="font-family:Times New Roman"> 4</span><span style="font-family:宋体">、有缓凝作用</span> <span style="font-family:宋体">掺入</span><span style="font-family:Times New Roman">0.25%</span><span style="font-family:宋体">的木钙减水剂后，在保持混凝土坍落度基本一致时，初凝时间普通水泥延缒�/span><span style="font-family:Times New Roman">1-2</span><span style="font-family:宋体">小时，矿渣水�?/span><span style="font-family:Times New Roman">2-4</span><span style="font-family:宋体">小时，终凝时间普通水�?/span><span style="font-family:Times New Roman">2</span><span style="font-family:宋体">小时，矿渣水�?/span><span style="font-family:Times New Roman">2-3</span><span style="font-family:宋体">小时，若不减少用水量而增大坍落度时，或保持相同坍落度而用以节省水泥用量时，则凝结时间延缓程度比减水的更大、�/span></p><p><span style="font-family:Times New Roman"> 5</span><span style="font-family:宋体">、能降低水泥早期水化�?/span> <span style="font-family:宋体">放热峰出现时间比未掺都有所推迟，普通水泥约</span><span style="font-family:Times New Roman">3</span><span style="font-family:宋体">小时，矿渣水泥约</span><span style="font-family:Times New Roman">8</span><span style="font-family:宋体">小时，大坝水泥在</span><span style="font-family:Times New Roman">11</span><span style="font-family:宋体">小时以上，放热峰**温度与未惨者比较，普通水泥略低，矿渣水泥及大坝水泥均低于</span><span style="font-family:Times New Roman">3</span><span style="font-family:宋体">ℂ�/span></p><p><span style="font-family:Times New Roman"> 6</span><span style="font-family:宋体">、混凝土含气量有所增加</span> <span style="font-family:宋体">空白混凝土的含气量为</span><span style="font-family:Times New Roman">1%</span><span style="font-family:宋体">左右，掺</span><span style="font-family:Times New Roman">0.25%</span><span style="font-family:宋体">木钙的混凝土含气量为</span><span style="font-family:Times New Roman">2.3%</span><span style="font-family:宋体">左右、�/span></p><p><span style="font-family:Times New Roman"> 7</span><span style="font-family:宋体">、泌水率减少</span> <span style="font-family:宋体">在混凝土的坍落度基本一致情况下，掺木钙的泌水率比不掺者可降低</span><span style="font-family:Times New Roman">30%</span><span style="font-family:宋体">以上，在保持水灰比不变，增大坍落度的情况下，也因木钙亲水性及引入空气等原因，泌水率下降、�/span></p><p><span style="font-family:Times New Roman"> 8</span><span style="font-family:宋体">、干缩性能</span> <span style="font-family:宋体">初期＇�/span><span style="font-family:Times New Roman">1-7</span><span style="font-family:宋体">）天与未掺减水剂的相比，基本接近或略有减小，</span><span style="font-family:Times New Roman">28</span><span style="font-family:宋体">天及后期（除节约水泥者外），略有增加，但增大值均未超迆�/span><span style="font-family:Times New Roman">0.01%</span><span style="font-family:宋体">＇�/span><span style="font-family:Times New Roman">0.01mm</span><span style="font-family:Times New Roman">/m</span><span style="font-family:宋体">）、�/span></p><p><span style="font-family:Times New Roman"> 9</span><span style="font-family:宋体">、提高混凝土的密实性，改善混凝土的抗渗能力、�/span> <span style="font-family:宋体">田�/span><span style="font-family:Times New Roman">B=6</span><span style="font-family:宋体">级，提高�?/span><span style="font-family:Times New Roman">B=12-30</span><span style="font-family:宋体">级、�/span></p><p><span style="font-family:Times New Roman"> 10</span><span style="font-family:宋体">、不含氯盐，对钢筋无锈蚀危害、�/span></p><p><span style="font-family:Times New Roman"> </span><span style="font-family:
">四、木素磺酸钙减水剂的质量标准</span> <span style="font-family:宋体">本公司生产的木素磺酸钙减水剂的质量经核定是稳定的</span></p><p><span style="font-family:Times New Roman"> .</span><span style="font-family:宋体">木钙执行标准９�/span><span style="font-family:Times New Roman">GB8076</span><span style="font-family:宋体">混凝土外加剂，木钙经检测，已通过省建设工程质量监督检验站的缓凝减水剂所有项目性能的检浊�/span><span style="font-family:Times New Roman">,</span><span style="font-family:宋体">编号９�/span><span style="font-family:Times New Roman">2003-2-024 3.</span><span style="font-family:宋体">木素磺酸钙减水掺入混凝土中的用量和溶解方泔�/span> <span style="font-family:宋体">木素磺酸钙减水剂对水泥的用量丹�/span><span style="font-family:Times New Roman">0.2-0.3%.</span><span style="font-family:宋体">。一般应�?/span><span style="font-family:Times New Roman">0.25%,</span><span style="font-family:宋体">例如</span><span style="font-family:Times New Roman">1</span><span style="font-family:
">立方米混凝土中用</span><span style="font-family:Times New Roman">400kg</span><span style="font-family:宋体">水泥，则掺用木素磺酸钘�/span><span style="font-family:Times New Roman">1.0kg</span><span style="font-family:宋体">、�/span> <span style="font-family:宋体">溶解方法：每次将每袋木素磺酸钙干粈�/span><span style="font-family:Times New Roman">25</span><span style="font-family:宋体">公斤溶解亍�/span><span style="font-family:Times New Roman">200</span><span style="font-family:宋体">公斤清水中，充分搅拌，使它完全溶解。为了施工操作方便，可以用定量法，即将溶解好的减水剂一次倾入搅合机中、�/span><span style="font-family:Times New Roman"> </span></p><p><span style="font-family:宋体">五、木质素磺酸钙具体用逓�/span></p><p style=";text-indent: 21px"><span style="font-family:宋体">①用作建筑混凝土工程减水剂、缓凝剂、能改善和易性，描�/span> <span style="font-family:
">高工程质量、�/span></p><p><span style="font-family:Times New Roman"> </span><span style="font-family:宋体">②作为粘性剂，可用于铸造砂型陶瓷和耐火材料的增强剂、�/span></p><p><span style="font-family:Times New Roman"> </span><span style="font-family:宋体">③用作选矿浮选剂和冶炼矿粉粘结剂、�/span></p><p><span style="font-family:Times New Roman"> </span><span style="font-family:宋体">④可用作农药填充和乳化剂、�/span> <span style="font-family:Times New Roman"> </span></p><p><br/></p> </div>  <div class="cxd"> <div class="cxd_tit"><span></span>创新炸�/div> <p style=" color: #333; font-size: 14px; margin: 10px 0 0; line-height: 26px;"> 木质素磺酸钙（简称木素磺酸钙或木钙），木浆废液的主要成分，是经先进的生产技术加工制成的具有黄色的粉末状固体，极易溶解于水。它是一种高分子电解质其分子量由1�?00-100000。其�?0000-40000的分散性尤其有效，普通性的木素磺酸盐，它具有分枝的和交联的分子结构� </p> </div>  <div class="xgfa"> <div class="xgfa_tit"> <div> <span></span>相关方案 </div> </div> <div class="xgfa_box" style="display: block;"><div style="padding:10px;">暂无相关方案、�/div> </div> </div> <script> $(function(){ // 切换 $(".xgfa_tit_ul li").hover(function(){ $(".xgfa_tit_ul li").css({"color":"#4F5862","border-bottom-color":"transparent"}); $(this).css({"color":"#1479d7","border-bottom-color":"#1479d7"}); var _index = $(this).index(); $(".xgfa_box").css("display","none"); $(".xgfa_box").eq(_index).css("display","block"); }); }); </script>  <div class="xgzl"> <div class="cxd_tit"><span></span>相关资料</div> <div class="xgzl_box"><div style="padding:10px;">暂无数据、�/div> </div> </div>  <div class="yhpl"> <div class="cxd_tit"><span></span>用户评论</div> <form id="FormComments" action="" method="post" onsubmit="return false"> <input name="SaveProComments" id="SaveProComments" type="hidden" value="yes" /> <input name="ProductID" id="ProductID" type="hidden" value="71353" /> <input name="ProQuality" id="ProQuality" type="hidden" value="10" /> <input name="ProService" id="ProService" type="hidden" value="10" /> <input name="ProUsability" id="ProUsability" type="hidden" value="10" /> <input name="ProCostperformance" id="ProCostperformance" type="hidden" value="10" /> <div class="yhpl_pf"> <div> <p>产品质量</p> <div><span id="Quality" class="stars star10"></span><span id="Quality_Val" class="ScoreVal" curScore="10">10刅�/span></div> </div> <div> <p>售后服务</p> <div><span id="Service" class="stars star10"></span><span id="Service_Val" class="ScoreVal" curScore="10">10刅�/span></div> </div> <div> <p>易用�?/p> <div><span id="Usability" class="stars star10"></span><span id="Usability_Val" class="ScoreVal" curScore="10">10刅�/span></div> </div> <div> <p>性价毓�/p> <div><span id="Costperformance" class="stars star10"></span><span id="Costperformance_Val" class="ScoreVal" curScore="10">10刅�/span></div> </div> </div> <div class="yhpl_pftit">评论内容</div> <textarea name="Comments" id="ProComments" onfocus="checklogin();" placeholder="分享产品使用经验/采购评价（不超过500字）">