【文章內(nèi)容簡(jiǎn)介】 溶性的、水硬性凝膠體，空隙中沒(méi)有游離狀態(tài)的堿和富余的堿存在，所以堿骨料反應(yīng)也就不會(huì)發(fā)生了。其次摻礦渣微粉混凝土致密的結(jié)構(gòu)和優(yōu)異的抗?jié)B性能限制了自由水分進(jìn)入混凝土的毛細(xì)孔道，因此造成堿骨料反應(yīng)發(fā)生的外部條件(潮濕的環(huán)境)不具備，致使堿骨料反應(yīng)的各種條件和渠道都被切斷，混凝土中無(wú)法再發(fā)生堿骨料反應(yīng)。所以礦渣微粉被稱為堿骨料反應(yīng)的優(yōu)良抑制劑。綜上所述，礦渣微粉是混凝土的一個(gè)非常有效的高性能礦物摻合料，摻入礦渣微粉，可以大幅度降低混凝土成本，同時(shí)大幅度提高混凝土強(qiáng)度、施工性能，大大提高了混凝土耐久性，降低混凝土水化熱，抑制堿骨料反應(yīng)。所以，在混凝土中摻入礦渣微粉可以配制成低成本高性能的混凝土。對(duì)于混凝土供應(yīng)商來(lái)說(shuō)，誰(shuí)先用，誰(shuí)先受益，誰(shuí)就會(huì)在激烈的市場(chǎng)競(jìng)爭(zhēng)中占得先機(jī)。隨著我國(guó)鐵路、能源、交通等基礎(chǔ)設(shè)施、水利建設(shè)和住宅建設(shè)方面的不斷發(fā)展，水泥生產(chǎn)正在向貿(mào)易中轉(zhuǎn)、商品混凝土方向發(fā)展。我國(guó)2010年遠(yuǎn)景目標(biāo)綱要已提出要“發(fā)展商品混凝土”。目前，我國(guó)建筑業(yè)在迅速發(fā)展，從而為商品混凝土的發(fā)展創(chuàng)造條件，而礦渣微粉的價(jià)格大大低于優(yōu)質(zhì)水泥的價(jià)格，這樣摻入礦渣微粉的商品混凝土成本就可降低不少。同樣，礦渣微粉在鐵路、能源、交通、水利方面的潛在市場(chǎng)也是巨大的。另外，隨著經(jīng)濟(jì)發(fā)展，優(yōu)質(zhì)水泥需求量將不斷增加，也將帶動(dòng)礦渣微粉需求市場(chǎng)的不斷增大。我省從2001年開(kāi)始在混凝土攪拌站應(yīng)用礦渣微粉，從目前情況看，其使用量每年均大幅度增加，以濟(jì)南、俄羅斯、萊蕪、淄博、濰坊為例，已經(jīng)廣泛使用，由于礦渣微粉的優(yōu)異性能，目前各混凝土攪拌站在配料中已經(jīng)離不開(kāi)礦渣微粉，而且呈不斷增加的勢(shì)頭。目前濟(jì)寧市的混凝土攪拌站的總生產(chǎn)能力約為1000萬(wàn)立方，按照一般規(guī)律，每立方混凝土中可以摻入100KG左右的礦渣微粉等量替代水泥而不會(huì)降低其強(qiáng)度，性能方面還會(huì)有更好的改善，因此目前僅混凝土攪拌站的需求量就會(huì)達(dá)到100萬(wàn)噸左右。而且呈不斷增長(zhǎng)的態(tài)勢(shì)。綜上所述，無(wú)論是從濟(jì)寧市還是山東省的發(fā)展情況看，礦渣微粉這一新興市場(chǎng)的前景廣闊。3經(jīng)濟(jì)與社會(huì)效益分析曲阜久久新型建材有限公司擬建設(shè)年產(chǎn)30萬(wàn)噸的礦渣微粉生產(chǎn)線。項(xiàng)目總投資500萬(wàn)元。項(xiàng)目總投資600萬(wàn)元，其中：建設(shè)投資380萬(wàn)元，鋪底流動(dòng)資金220萬(wàn)元。 根據(jù)當(dāng)?shù)丶爸苓吺?、地水泥工業(yè)和商品混凝土市場(chǎng)現(xiàn)狀及發(fā)展趨勢(shì)情況，經(jīng)測(cè)算，礦渣微粉綜合售價(jià)為190元/t。生產(chǎn)期產(chǎn)品售價(jià)不做調(diào)整。產(chǎn)品達(dá)產(chǎn)年平均營(yíng)業(yè)收入為5472萬(wàn)元。營(yíng)業(yè)收入估算見(jiàn)附表1。（1） 增值稅、營(yíng)業(yè)稅及附加：增值稅按規(guī)定計(jì)算。城市維護(hù)建設(shè)稅按增值稅的7%計(jì)算，教育費(fèi)附加按增值稅額的3%計(jì)算。 （2）所得稅：所得稅稅率為33%。（3）印花稅、房產(chǎn)稅等參照《建材工業(yè)建設(shè)項(xiàng)目經(jīng)濟(jì)評(píng)價(jià)實(shí)施細(xì)則》和同類型企業(yè)情況計(jì)算。：企業(yè)稅后利潤(rùn)按規(guī)定分別提取公積金、公益金，提取比例暫按稅后利潤(rùn)的10%、5%計(jì)算。提取上述基金后，其余利潤(rùn)在償還借貸資金以后可用于分配。經(jīng)計(jì)算，損益情況匯總見(jiàn)下表：項(xiàng)目年平均（萬(wàn)元）營(yíng)業(yè)收入5472增值稅附加稅總成本利潤(rùn)總額所得稅稅后利潤(rùn)公積金公益金可分配利潤(rùn)從指標(biāo)上看，項(xiàng)目的盈利能力良好，綜合以上分析，從財(cái)務(wù)角度講項(xiàng)目是可行的。本項(xiàng)目建成后，除了給建設(shè)方帶來(lái)豐厚的經(jīng)濟(jì)效益外，還具有較好的社會(huì)效益：，全部利用萊鋼、濟(jì)鋼和泰鋼企業(yè)排出的工業(yè)廢渣水淬高爐礦渣生產(chǎn)新型建材產(chǎn)品。，在安排人員就業(yè)的同時(shí)，可以拉動(dòng)當(dāng)?shù)丶爸苓吔?jīng)濟(jì)發(fā)展，促進(jìn)當(dāng)?shù)亟?jīng)濟(jì)社會(huì)和諧發(fā)展。g an employment tribunal claimEmployment tribunals sort out disagreements between employers and employees.You may need to make a claim to an employment tribunal if: you don39。t agree with the disciplinary action your employer has taken against you your employer dismisses you and you think that you have been dismissed unfairly.For more information about dismissal and unfair dismissal, seeDismissal.You can make a claim to an employment tribunal, even if you haven39。tappealedagainst the disciplinary action your employer has taken against you. However, if you win your case, the tribunal may reduce any pensation awarded to you as a result of your failure to appeal.Remember that in most cases you must make an application to an employment tribunal within three months of the date when the event you are plaining about happened. If your application is received after this time limit, the tribunal will not usually accept it.If you are worried about how the time limits apply to you, take advice from one of the organisations listed underFurther help.Employment tribunals are less formal than some other courts, but it is still a legal process and you will need to give evidence under an oath or affirmation.Most people find making a claim to an employment tribunal challenging. If you are thinking about making a claim to an employment tribunal, you should get help straight away from one of the organisations listed underFurther help.If you are being represented by a solicitor at the tribunal, they may ask you to sign an agreement where you pay their fee out of your pensation if you win the case. This is known as adamagesbased agreement. In England and Wales, your solicitor can39。t